Mozilla
Learn more about Mozilla, the company behind this role.
Open Roles
Staff Program Manager, Trust & Safety
To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Mozilla Trust & Safety team helps Mozilla build and operate products that prioritize people’s safety, privacy, and agency. We partner with product, engineering, legal, and policy teams to understand potential risks across our products and services, and we design policies, processes, and technical capabilities that reduce harm while advancing Mozilla’s mission. As a Staff Program Manager, you’ll design and implement safety and compliance initiatives across a diverse portfolio of products, from trustworthy AI to marketplace integrity. You will partner closely with cross-functional teams to collaboratively manage and optimize our Trust & Safety programs, including policy implementation, content moderation, and regulatory compliance. This position requires a unique blend of prior Trust & Safety experience, strong program management skills, and problem-solving abilities. Our ideal candidate is a strategic thinker and self-starter who thrives in complex, ambiguous environments. You will be responsible for implementing strategic safety programs at scale, partnering with stakeholders from product, legal, policy, and engineering teams to navigate evolving risks and regulations, address emerging threats, and contribute to a culture of safety by design. What you’ll do: - Manage key Trust & Safety programs to reduce harmful experiences for our users. - Collaborate with cross-functional partners (e.g., Product, Engineering, Legal, and others) to proactively identify and mitigate risks to user safety. - Apply data-driven frameworks to assess program effectiveness and identify areas for improvement, in alignment with broader company goals and business objectives. - Stay informed about industry best practices and emergent risks associated with new technology products and contexts. What you’ll bring: - 5+ years of experience in Trust & Safety operations or a related role. - Familiarity with content moderation ecosystems, including policy implementation standards and scaled review systems. - Experience using metrics, dashboards, or reporting to identify trends and improve outcomes. - Ability to analyze and improve end-to-end Trust & Safety systems, including policies, review processes, and tooling. - Strong understanding of online safety issues, such as data privacy, misinformation, and fraud. - Strong understanding of AI safety issues, such as fairness, accountability, and transparency. - Excellent analytical, problem-solving, and decision-making skills. - Strong written and verbal communication skills. - Ability to work independently and as part of a team. - Experience collaborating with diverse stakeholder groups. - Experience working in a fast-paced and dynamic environment. - Demonstrated ability to operate across a wide range of Trust & Safety projects, quickly adapting to new problem spaces, policy areas, and operational needs. What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C LI-DNI Req ID: R3161
Staff Data Scientist, Firefox
To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make groundbreaking brands like Firefox, the privacy-minded web browser. Now, with more than 200 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, privacy, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Firefox Data Science team partners with Product and Engineering to grow usage of our flagship product: Firefox , the privacy-minded web browser. Our work informs prioritization, investment decisions, and the long-term growth strategy across Firefox. This Staff Data Scientist will own the analytical strategy for a major product area: identifying the right questions, defining how success is measured, and driving decisions that shape Firefox’s growth trajectory. You will be a strategic partner to product and engineering leadership: framing problems, designing measurement approaches, and translating data into clear recommendations that influence roadmap and resource allocation. You will also raise the analytical bar across the team by establishing frameworks, mentoring other data scientists, and setting standards for how we measure and learn. This role requires the judgment to know which problems matter most, the technical depth to solve them rigorously, and the influence to ensure the work drives action. What you’ll do: - Own the analytical strategy for a product area: identifying the highest-leverage questions, defining the measurement framework, and ensuring data-driven decisions - Serve as a strategic partner to product and engineering leadership, translating ambiguous business problems into analytical approaches and clear, actionable recommendations - Define north-star metrics and measurement strategies to set goals, evaluate progress, and make trade-offs - Design and oversee experiments and causal analyses, ensuring methodological rigor and that results drive real product decisions - Develop and maintain a deep understanding of user growth dynamics: how acquisition, activation, and retention interact to drive growth, and use that understanding to diagnose metric movements, explain trends to leadership, and anticipate emerging risks or opportunities - Contribute and own areas of the team’s forecasting and growth modeling efforts, helping translate statistical models into actionable growth strategies - Mentor and elevate other data scientists through code review, methodology guidance, and establishing reusable analytical frameworks - Represent data science in cross-functional forums, making the case for what the data shows even when it challenges prevailing assumptions - Drive alignment across data science, data engineering, and product on shared priorities like data quality, metric definitions, and instrumentation What you’ll bring: - 8+ years of experience in data science, analytics, or applied quantitative analysis, with a track record of shaping product strategy through data - Demonstrated ability to lead complex, cross-functional analytical initiatives from problem framing through stakeholder alignment to decision - Deep expertise in experimentation (A/B testing) and causal inference, with strong judgment about when each method applies and what conclusions they support - Advanced proficiency in SQL and Python for analysis, modeling, and validation - Experience defining and owning product metrics that teams actually use to make decisions - Strong opinions, loosely held: you can take a position on what the data says, advocate for it clearly, and update when the evidence changes - Track record of mentoring or technically leading other data scientists - Commitment to our values: - Welcoming differences - Being relationship-minded - Practicing responsible participation - Having grit What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc.varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C LI-DNI Req ID: R3103
Senior Solutions Engineer (DACH), Firefox Enterprise
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: We’re now seeking a Senior Solutions Engineer (DACH) to support the growth of Firefox Enterprise across Germany, Austria, and Switzerland. This is a highly customer-facing technical role focused on helping enterprises evaluate, validate, and deploy Firefox Enterprise in secure, complex, and regulated environments. The ideal candidate brings deep technical credibility, strong enterprise architecture experience, and a passion for helping customers solve real-world security, deployment, and interoperability challenges. What you’ll do: - Partner with Sales to support strategic enterprise opportunities across DACH. - Lead technical discovery and solution design with customers and partners. - Run workshops with customer stakeholders across security, infrastructure, IAM, endpoint management, and workplace technology. - Own the relationship to the customer’s technical counterparts during and after the sales process. - Help customers evaluate Firefox Enterprise in areas such as deployment, policy management, identity integration, logging, security controls, and operational fit. - Design and support pilots, proofs of concept, and rollout plans. - Advise customers on deployment models, architecture decisions, and integration approaches for enterprise environments. - Validate interoperability across systems such as SSO, MFA, SIEM, proxy/network controls, endpoint tooling, certificates/PKI, and browser policy frameworks. - Identify and help resolve technical risks early, including application compatibility, certificate handling, deployment complexity, and policy enforcement requirements. - Create reusable technical assets such as reference architectures, deployment guidance, validation plans, and technical enablement materials. - Support and enable partners involved in deployment, integration, and customer success. - Champion Mozilla’s values of openness, trust, and user agency in every customer interaction. What you’ll bring: - Significant experience (7+ years) in a senior Solutions Engineer, Sales Engineer, Solutions Architect, Security Architect, or Technical Account Manager role. - Ideally deep knowledge of the DACH IT landscape, particularly within the public sector, financial services, or KRITIS (Critical Infrastructure) operators . - Strong background in enterprise security, endpoint management, browser security, Zero Trust, IAM, or digital workplace infrastructure. - Hands-on knowledge of: - Windows enterprise deployment - GPO / MDM / policy management - certificates / PKI / TLS / proxies - SSO / MFA / IdP integrations - SIEM / DLP / CASB ecosystems - Kubernetes / Helm for customer-operated environments - Experience supporting pilots, technical evaluations, or enterprise deployments in complex customer environments. - Ability to translate complex regulatory requirements into technical configurations and sales evidence. - Ability to communicate clearly with both technical teams and senior customer stakeholders. - Comfort working across ambiguity and helping customers move from evaluation to deployment with confidence. - Strong written and verbal communication skills in English. - Native-level fluency in German What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C LI-REMOTE Req ID: R3127 Hiring Ranges: Remote Germany €81.000 - €108.000 EUR
Public Policy & Government Relations Manager
To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Mozilla’s mission is to champion the internet as a global public resource, measured through a double bottom line : advancing that mission while succeeding in the market. At Mozilla Corporation, this means building and scaling trusted, user-first products , like Firefox , that give people meaningful control over their online experience, while supporting a more open, competitive, and sustainable tech ecosystem. The global public policy team enables this by shaping laws and regulatory frameworks that support our open source technologies, strengthen user choice and privacy, and ensure fair competition to create the conditions for responsible innovation and long-term growth.Do you like working on big-picture problems? Join us to influence the future of tech policy! In this role, you will engage with government stakeholders, industry partners, and civil society, advocating for public policy positions that align with our mission and support responsible innovation in technology. You will be responsible for raising the profile of Mozilla and Firefox in the UK, ensuring consistent engagement with our stakeholders, and coordinating input from subject matter experts on the global policy team. As such, you will lead end-to-end policy campaign development and execution across key issues such as privacy, competition, and AI in the UK, while contributing to and supporting related efforts at EU level. You will also collaborate with our internal product and engineering teams to provide expert advice on public policy implications related to the rollout of new products. This role reports to the Head of Public Policy EU. This is a high-impact role for someone who understands both the technical landscape and the policymaking process—and who wants to help build a better internet. What you'll do: - Engage with UK policymakers, regulators, and other stakeholders to advocate for policy frameworks that support the open web and Mozilla’s product initiatives. Focus on issues including competition, privacy, AI, and consumer protection while supporting alignment with EU regulatory developments and stakeholders . - Build public policy campaigns from the ground up and drive their execution to raise Mozilla’s profile in the UK and shape ongoing policy discussions that impact our products and the open web, including planning, delivery, and evaluation of end-to-end advocacy strategies. - Represent Mozilla in external forums, industry groups, and other public venues on policy issues, and ensure our views are accurately and effectively communicated, including through policy events, thought leadership, and coordinated advocacy with third-party organisations. - Monitor, analyze, and communicate internally about emerging policy issues, regulatory developments, and global trends affecting Mozilla's products and services across the UK and the EU. - Translate complex technical concepts into clear, concise, and actionable policy insights and recommendations. - Lead and manage policy-related projects end-to-end, including coordination of timelines, stakeholders, deliverables, and external partners. What you'll bring: - Bachelor's degree or equivalent practical experience with at least 5 years of experience working on technology policyDemonstrated experience working in the UK policy environment (e.g. UK Government, Westminister, CMA, ICO etc), with familiarity and exposure to EU policy processes and stakeholders. - Ability to manage multiple priorities with high attention to detail, manage external policy agencies and drive projects to successful completion, including structured delivery of policy campaigns, events, and advocacy initiatives. - Excellent cross-functional skills with experience working with international teams and a variety of collaborators. - Strong policy writing, research, and analysis skills attuned to communicating key information to decision makers. - Experience in competition and privacy policy, and/or exposure to civil society, or non-profit technology environments, is strongly preferred. What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C LI-DNI Req ID: R3152
Senior Software Engineer, Firefox Security
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. What you’ll do: - Advance Firefox's security architecture and cryptography stack: Contribute to improvements in Firefox's core security systems, with a focus on cryptographic protocols, WebPKI, and security-sensitive web APIs. Help implement and maintain security features that support the evolution of public key infrastructure on the web. - Design and implement web platform security features: Develop and ship web platform features in collaboration with teammates and the broader web community. Contribute to standards-based, secure, and interoperable implementations across Firefox. - Improve browser reliability, performance, and resource efficiency: Investigate and resolve issues impacting stability, correctness, and performance. Analyze and improve memory usage and efficiency within a complex, multi-threaded browser environment. - Collaborate on security initiatives: Partner with engineers across teams to identify, prioritize, and address security issues. Participate in debugging, root cause analysis, and implementation of effective long-term solutions. - Contribute to technical design and planning: Participate in technical discussions, design reviews, and project planning for security-related initiatives. Help evaluate tradeoffs and contribute to engineering decisions within your area of work. What you’ll bring: - Strong software engineering and security fundamentals: Experience in software engineering, with proficiency in C/C++ and a solid understanding of security principles, including cryptographic protocols and implementations. - Experience building and maintaining complex software systems: Ability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive environments. - Strong debugging and problem-solving skills: Expertise in diagnosing and resolving issues in multi-threaded, cross-platform native applications, including performance and memory-related challenges. - Collaborative and effective communicator: Ability to work effectively with distributed teams, communicate technical concepts clearly, and collaborate constructively to solve problems. - Growth mindset and willingness to learn : Demonstrated curiosity and desire to deepen expertise in browser security, cryptography, and systems programming while continuously improving engineering skills. - Web platform and modern systems experience: Familiarity with web technologies and interest or experience in Rust. Comfortable working within large, complex, multi-language codebases. What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D LI-REMOTE Req ID: R3155 Hiring Ranges: Remote Belgium €56.000 - €74.000 EUR
Senior Software Engineer - Engineering Workflow and CI
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team’s applications to develop, build, test, and deliver Mozilla’s core products. We are force-multipliers to enable Firefox developers to do their best work. What you’ll do: - Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows - Work with a geographically-distributed development team - Mentor other team members and be mentored by more senior team members - Collaborate with other teams by providing code review and technical direction - Look at data, make dashboards, identify trends in Firefox development workflow What you’ll bring: - Proven Python skills, including building services - Front-end development experience, including JavaScript proficiency - Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST - Solid understanding of databases and SQL - Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses - Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android - A passion
Senior Engineering Manager, AI Product (Thunderbolt)
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. We are a small but growing company of 60+ people distributed across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, and new product experiences that help people and organizations work more effectively without giving up control to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net and www.thunderbolt.io. The opportunity Thunderbolt is an open-source, cross-platform AI product initiative from the team behind Thunderbird. It is being built around a clear principle: people and organizations should be able to use AI while staying in control of their data, infrastructure, model choices, and long-term options. Thunderbolt is designed to support flexible deployment models, integrations with AI tools and workflows, and use cases across desktop, web, and mobile. We are looking for a Senior Engineering Manager to lead engineering execution, people management, and operating practices for Thunderbolt as it moves from R&D incubation into a more mature product and enterprise development phase . This role will help the team define what production-ready means at this stage: stronger release discipline, clearer ownership, higher user-facing product quality, stronger engineering practices, and a more scalable operating model. This is a hands-on technical management role . The Senior Engineering Manager will manage a senior engineering team, stay closely engaged with the codebase and technical execution , coordinate work across employees, contractors, and technical partners, and help the team deliver a reliable, enterprise-ready open-source AI product. The right person will bring strong people management skill
Senior Software Engineer, Firefox Security
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. What you’ll do: - Advance Firefox's security architecture and cryptography stack: Contribute to improvements in Firefox's core security systems, with a focus on cryptographic protocols, WebPKI, and security-sensitive web APIs. Help implement and maintain security features that support the evolution of public key infrastructure on the web. - Design and implement web platform security features: Develop and ship web platform features in collaboration with teammates and the broader web community. Contribute to standards-based, secure, and interoperable implementations across Firefox. - Improve browser reliability, performance, and resource efficiency: Investigate and resolve issues impacting stability, correctness, and performance. Analyze and improve memory usage and efficiency within a complex, multi-threaded browser environment. - Collaborate on security initiatives: Partner with engineers across teams to identify, prioritize, and address security issues. Participate in debugging, root cause analysis, and implementation of effective long-term solutions. - Contribute to technical design and planning: Participate in technical discussions, design reviews, and project planning for security-related initiatives. Help evaluate tradeoffs and contribute to engineering decisions within your area of work. What you’ll bring: - Strong software engineering and security fundamentals: Experience in software engineering, with proficiency in C/C++ and a solid understanding of security principles, including cryptographic protocols and implementations. - Experience building and maintaining complex software systems: Ability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive environments.</s
Senior Software Engineer - Engineering Workflow and CI
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team’s applications to develop, build, test, and deliver Mozilla’s core products. We are force-multipliers to enable Firefox developers to do their best work. What you’ll do: - Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows - Work with a geographically-distributed development team - Mentor other team members and be mentored by more senior team members - Collaborate with other teams by providing code review and technical direction - Look at data, make dashboards, identify trends in Firefox development workflow What you’ll bring: - Proven Python skills, including building services - Front-end development experience, including JavaScript proficiency - Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST - Solid understanding of databases and SQL - Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses - Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android - A passion
Senior Software Engineer, Firefox Security
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. What you’ll do: - Advance Firefox's security architecture and cryptography stack: Contribute to improvements in Firefox's core security systems, with a focus on cryptographic protocols, WebPKI, and security-sensitive web APIs. Help implement and maintain security features that support the evolution of public key infrastructure on the web. - Design and implement web platform security features: Develop and ship web platform features in collaboration with teammates and the broader web community. Contribute to standards-based, secure, and interoperable implementations across Firefox. - Improve browser reliability, performance, and resource efficiency: Investigate and resolve issues impacting stability, correctness, and performance. Analyze and improve memory usage and efficiency within a complex, multi-threaded browser environment. - Collaborate on security initiatives: Partner with engineers across teams to identify, prioritize, and address security issues. Participate in debugging, root cause analysis, and implementation of effective long-term solutions. - Contribute to technical design and planning: Participate in technical discussions, design reviews, and project planning for security-related initiatives. Help evaluate tradeoffs and contribute to engineering decisions within your area of work. What you’ll bring: - Strong software engineering and security fundamentals: Experience in software engineering, with proficiency in C/C++ and a solid understanding of security principles, including cryptographic protocols and implementations. - Experience building and maintaining complex software systems: Ability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive environments.</s
Technical Support Specialist
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. Our small but growing distributed team includes 65+ people across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, and paid services to build independent, privacy-respecting alternatives to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity Thunderbird is growing, and we’re looking for a Technical Support Specialist to help deliver excellent support for Thunderbird users across our expanding product ecosystem, including our subscription products. This role is for someone who takes real satisfaction in resolving support requests with care, clarity, and technical precision. You enjoy working through a queue, diagnosing tricky issues, helping users get unstuck, and spotting patterns that can make support better for everyone. Every closed ticket, forum response, or app store reply represents a user who can get back to what they were trying to do. You’ll be part of the Support Operations team, working closely with support, product, engineering, documentation, and community colleagues. Your initial focus will be supporting Thunderbird’s subscription products as they scale, but you’ll also help users through community forums, app store reviews, and other support channels. This is a great opportunity for someone who loves technical support work, cares deeply about the user experience, and wants to help shape support practices for products that are still growing. What you’ll do - Manage technical support tickets from intake through resolution, with an initial focus on Thunderbird’s subscription products. - Provide timely, thoughtful, and empathetic support that helps users feel heard, understood, and effectively supported. - Troubleshoot Level 1 and Level 2 technical issues, including account setup, email configuration, SMTP, IMAP, JMAP, DNS, email authentication, and Thund
Staff Operations Engineer
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security, and more. And we’re doing this without losing focus on our core mission - to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders - only to our mission. Along with thousands of volunteer contributors and collaborators worldwide, Mozillians design, build, and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: A Staff Operations Engineer leads the design, reliability, and evolution of hybrid-cloud and workplace infrastructure. This senior role spans teams, drives complex initiatives, sets technical direction, and ensures systems are scalable, secure, and efficient. This role combines technical execution with leadership , shaping architecture both directly and collaboratively. What you’ll do: Domain Architecture & Technical Direction - Own and evolve architecture within a defined infrastructure domain - Design and implement scalable, reliable systems spanning multiple teams or environments - Establish and promote best practices, patterns, and standards within the domain - Contribute to medium- and long-term technical strategy (typically 6-18 months) Complex Problem Solving & Execution - Lead delivery of ambiguous, high-impact infrastructure projects - Break down elaborate system problems into implementable solutions - Drive migrations, re-architectures, and performance/reliability improvements - Remain hands-on with critical systems and implementations Cross-Team Collaboration - Work across teams (IT, SRE, Security, Service Owners) to unify solutions. - Influence technical decisions through design reviews and collaboration - <span style="font
Senior Security Engineer, Add-ons Operations
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: addons.mozilla.org (AMO) is the foundation of the Firefox add-ons ecosystem. It’s a showcase for developers to publish and grow their extensions, and a place of discovery for millions of users who customize Firefox to make it their own. Behind the scenes are the DevHub which enables developers to manage their extensions. To manage the ecosystem there are a series of Reviewer tools and automated moderation systems. As a Senior Software Engineer - Operations, you’ll bring a passion for crafting resilient systems that accelerate our review and operations team to provide a first-class experience for Add-on developers. You’ll work closely with engineers, reviewers, developer relations, and Add-ons leadership to turn ideas into polished features, modernize the platform and its architecture, and see your work reach millions of people around the world. What you’ll do: - Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub. - Create robust observability systems and data-backed insights. - Provide peer feedback, share knowledge and help others grow. - Improve platform reliability through deployments, monitoring, and incident response. - Help keep the platform safe and trustworthy, with attention to security and user trust. - Step in to resolve issues impacting users and developers, from small bugs to larger incidents. - Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements. - Contribute in the open through pull requests, code reviews, and discussions. - <span style="
Senior Platform Engineer, WebExtensions
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The WebExtensions platform powers the add-ons ecosystem in Firefox, enabling millions of users to customize their browser while keeping safety and performance at the forefront. As a WebExtensions Engineer, you will help implement new extension capabilities, improve existing APIs, and ensure that extensions remain reliable across Firefox. As a Software Engineer on the WebExtensions team, you’ll bring a passion for exploring complex systems and creating experiences that balance developer power with user trust. You’ll work deep in the Gecko platform to evolve extension capabilities, and you’ll build UI features in Firefox that make extensions clear and manageable for users. Along the way, you’ll collaborate with experts across Mozilla and help advance cross-browser compatibility and the path toward standardization. Your work will keep extensions safe, powerful, and reliable for developers and millions of Firefox users. What you’ll do: - Implement and maintain WebExtensions APIs and Addon Management, balancing power, safety, and performance, as well as user interfaces in Firefox. - Debug and fix issues affecting extensions in Firefox. - Collaborate with product managers, QA, and the AMO engineering team to deliver features end-to-end. - Contribute to Mozilla-owned extensions and system add-ons. - Participate in open source workflows: code reviews, pull requests, and discussions in Bugzilla/GitHub. - Support extension developers by helping diagnose issues and improving tooling/documentation. Wh
Senior Engineering Manager, Web Apps
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. We are a small but growing company of 60+ people distributed across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, and new product experiences that help people and organizations work more effectively without giving up control to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity Thunderbird is growing beyond our free desktop and mobile applications, and we’re looking for a Senior Manager, Web Applications to lead day-to-day engineering execution and people management for the team responsible for MZLA’s hosted subscription products. This is a critical product and revenue area for MZLA. The Senior Manager will help the team launch, maintain, and improve hosted services with strong delivery discipline, clear ownership, reliable engineering practices, and a continued focus on quality, privacy, reliability, and user trust. This is a small, growing team, and the right person will be a hands-on technical manager who wants to stay close to the codebase, product direction, service reliability needs, release readiness, and engineering tradeoffs while also leading people and improving how the team operates. As the Web Applications team continues to mature, this role will require an engaged manager who can help create structure, solve problems, support execution, and build stronger systems around the work. This role requires consistent overlap with EST time zone working hours, and we strongly prefer candidates located in or closely aligned with this time zone. What you’ll do - Lead day-to-day engineering execution in a hands-on management capacity, ensuring priorities, ownership, timelines, risks, dependencies, and quality expectations are clear. - Manage Web Services engineers and contr
Senior Engineering Manager, AI Product (Thunderbolt)
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. We are a small but growing company of 60+ people distributed across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, and new product experiences that help people and organizations work more effectively without giving up control to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net and www.thunderbolt.io. The opportunity Thunderbolt is an open-source, cross-platform AI product initiative from the team behind Thunderbird. It is being built around a clear principle: people and organizations should be able to use AI while staying in control of their data, infrastructure, model choices, and long-term options. Thunderbolt is designed to support flexible deployment models, integrations with AI tools and workflows, and use cases across desktop, web, and mobile. We are looking for a Senior Engineering Manager to lead engineering execution, people management, and operating practices for Thunderbolt as it moves from R&D incubation into a more mature product and enterprise development phase . This role will help the team define what production-ready means at this stage: stronger release discipline, clearer ownership, higher user-facing product quality, stronger engineering practices, and a more scalable operating model. This is a hands-on technical management role . The Senior Engineering Manager will manage a senior engineering team, stay closely engaged with the codebase and technical execution , coordinate work across employees, contractors, and technical partners, and help the team deliver a reliable, enterprise-ready open-source AI product. The right person will bring strong people management skill
Senior Manager, Firefox Mobile Test Engineering
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders – only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: In support of our mission to make the internet a healthier place, we aim to make Firefox the best mobile browser for security, privacy, speed, and empowering user choice. Firefox Mobile is used by tens of millions of people across Android and iOS every month. The Test Engineering team is responsible for making sure that experience is excellent – through test automation infrastructure, observability tooling, and hands-on exploratory testing. We're growing this team's scope and ambition, and we're looking for a senior leader to own it. This is a role for someone who thinks about quality the way a great product manager thinks about users: with curiosity, with ownership, and with a bias toward finding the things that matter most. You'll set our overall test strategy, lead our exploratory testing program, and manage a team of engineers building the automation infrastructure and observability tooling that keeps Firefox Mobile healthy at scale. You'll manage a team of full-time engineers plus a group of contractors, and you'll work in close partnership with our Android and iOS engineering, product, and UX teams to help us all collectively drive greater development speed, developer ease, and product quality. What you’ll do: - In concert with senior mobile leadership, you will set and own Firefox Mobile’s overall quality strategy – not as a set of metrics to report, but as a product outcome to drive. - Manage our Test Automation Engineering, ensuring we understand and prioritize the highest impact work and detect bugs earlier in the process, in deep partnership with our iOS and Android dev teams - Oversee our observability work, including dashboards and automated reporting that give engineers early visibility into quality regressions, crash trends, and product health signals. - Lead our exploratory testing work, including teaching exploratory testing skills and structuring our exploratory testing program. - Partner closely with Pro
Lead Privacy Counsel, Infrastructure & Data Governance
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: We are seeking a strategic, pragmatic, and proactive Privacy Counsel to join our privacy legal team! This role will focus primarily on building, operationalizing, and maintaining Mozilla’s core privacy compliance infrastructure and scalable privacy governance processes across our global organization. Working remotely, you will serve as frontline privacy counsel for internal privacy matters, advising teams across Mozilla on operational privacy risks, enterprise data governance, third-party risk management, and incident response. You will partner closely with legal, security, IT, engineering, procurement, people, trust and safety, and other cross-functional stakeholders to help operationalize privacy-by-design principles across Mozilla’s internal systems and enterprise processes, and develop our privacy compliance and risk-management strategy. This is a highly collaborative and execution-oriented role for someone who thrives in ambiguity, takes ownership of complex initiatives, and can independently drive programs from strategy through implementation. We’re a small legal team, so this role requires someone who is both a leader and a “doer” - someone with deep expertise but who isn’t above rolling up their sleeves to take on tasks necessary to help make sure the job gets done. The ideal candidate combines strong substantive privacy expertise with experience building durable compliance infrastructure and managing enterprise privacy operations in a fast-moving technology environment. What you'll do: - Lead the development, implementation, and ongoing maintenance of Mozilla’s core privacy compliance infrastructure, including enterprise data mapping and records of processing activities. - Independently drive complex cross-functional privacy initiatives and operationalize scalable governance processes with minimal oversight. - Evaluate and advise on evolving U.S., European, and international privacy and AI related regulatory developments and industry guidelines relevant to enterprise operations and internal data governance. - <span style
Integrated Marketing Manager - UK
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. The Opportunity We’re looking for an Integrated Marketing Manager for the UK to build and lead our regional marketing strategy. You’ll operate at the intersection of global strategy and local execution—bringing deep UK insight into a globally coordinated marketing organization. Europe is at the center of a once-in-a-decade shift in how browsers compete. This role is about turning that shift into relevance and sustained growth—and helping millions of people choose a better internet. We are looking for someone who can integrate the brand into sports, music, and local communities to ensure Firefox remains a prominent and valued choice for consumers. At the same time, this role plays an important part in building and leading our UK marketing strategy and executions, driving broader brand relevance, consideration, and user growth across the UK market. This is a critical marketing role focused on: - Re-establishing Firefox as a relevant, differentiated brand - Driving relevance and market share growth - Leading major campaigns and partnerships and activations in the UK Key Responsibilities Partner with the Director European Integrated Marketing to shape and deliver integrated marketing strategies and storytelling for the UK, build cultural relevance, and represent the brand, using audience insights and product feature priorities as an anchor. Build Cultural Relevance - Help make Mozilla part of the conversation across sports, music, creator, music, and internet culture in the UK. -
Firefox Security Student Worker
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. About this team and role: The Firefox Application Security Team sits at the center of Firefox, collaborating with the whole organization through fundamental security projects that range from architecture hardening , and security research to web security . Our team applies foundational platform improvements as well as automation to scale our work such that it serves all of Firefox and hundreds of millions users worldwide. What you’ll do: - Learn how our team secures the web and help improve the browsing experience for everyone on the web - Get support from your manager and your assigned mentor - Learn and partake in regular team processes that help secure a mature product - Help investigate security issues with guidance and write test cases using HTML and JavaScript - Improve existing team processes using Python or expand web security features in Firefox using C++ - Get the chance to learn how to work with the wider open source community - Optionally, propose and drive your own projects What you’ll bring - You are enrolled in a university in Germany and are willing to occasionally visit our office in Berlin a few times per year - You do not need prior security experience, but you should bring either web development, Python, or systems programming experience, and enjoy careful technical investigation. - You are comfortable communicating in English in writing and during meetings</span&g
Senior Security Engineer, Add-ons Operations
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: addons.mozilla.org (AMO) is the foundation of the Firefox add-ons ecosystem. It’s a showcase for developers to publish and grow their extensions, and a place of discovery for millions of users who customize Firefox to make it their own. Behind the scenes are the DevHub which enables developers to manage their extensions. To manage the ecosystem there are a series of Reviewer tools and automated moderation systems. As a Senior Software Engineer - Operations, you’ll bring a passion for crafting resilient systems that accelerate our review and operations team to provide a first-class experience for Add-on developers. You’ll work closely with engineers, reviewers, developer relations, and Add-ons leadership to turn ideas into polished features, modernize the platform and its architecture, and see your work reach millions of people around the world. What you’ll do: - Deliver major features and architectural improvements across the Add-ons stack, including automated moderation pipelines, Reviewer tools, and DevHub. - Create robust observability systems and data-backed insights. - Provide peer feedback, share knowledge and help others grow. - Improve platform reliability through deployments, monitoring, and incident response. - Help keep the platform safe and trustworthy, with attention to security and user trust. - Step in to resolve issues impacting users and developers, from small bugs to larger incidents. - Collaborate with designers, product managers, QA, and community contributors to deliver end-to-end improvements. - Contribute in the open through pull requests, code reviews, and discussions. - <span style="
Senior Marketing Data Scientist
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The Marketing Data Science team sits within the broader Product Data Science organization and provides comprehensive analytical support and thought partnership to Marketing to guide responsible and effective investment decisions. Our work centers on end-to-end measurement solutions that seek to quantify the true return of our marketing efforts—touching measurement instrumentation, data modeling, experiment design, execution, and the translation of insights into actionable recommendations. Beyond measurement, we support KPI forecasting, budget allocation, self-service reporting, and a wide range of advanced statistical modeling solutions. As a Senior Data Scientist, you will take a hands-on role in answering complex marketing questions and navigating a dynamic, often imperfect data environment. You will leverage your strong analytical skills, technical depth, and business domain understanding to uncover insights, refine existing tactics, and help identify new opportunities to enhance Marketing’s impact. What you’ll do: - Own marketing tests end-to-end, leveraging and contributing to our Python-based measurement workflows. - Collaborate with senior ICs to address critical data infrastructure needs, support org-wide migrations, and develop new analytical and measurement solutions. - Develop reporting and monitoring tools that surface business insights and increase visibility into marketing performance and impact. - Conduct deep-dive analyses to investigate questions related to performance, audiences, monetization, attribution, and data integrity. - Provide flexible analytical support across the team’s project portfolio, taking high-level direction from senior ICs while independently owning specific components of the solution. What you’ll bring: - 2–3 years of experience conducting quantitative analyses, ideally within a marketing or growth environment. <
Privacy Student Worker
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company behind pioneering brands like Firefox, the privacy-minded web browser, and Pocket, the content discovery platform. More than 270 million people around the world use its products each month. Along with 20,000+ volunteer contributors and collaborators all over the world, Mozilla Corporation’s staff are driven by our vision to be the trusted guide through a joyful internet. We design, build and distribute software that enables people to enjoy the internet on their terms. Motivation: - Are you passionate about Firefox and the open Web? - Do you want your contributions to have a positive impact on the world? - Do you want the Web to be more secure by bringing state of the art web privacy features to everyone? Your Professional Profile - Currently enrolled in a Bachelor’s, Master’s, or Ph.D. degree program in Computer Science, Computer Engineering, or related technical field focusing on security, privacy, or software development - Strong communication skills and proficiency in English - Enthusiasm for conducting software engineering work in the open - Basic knowledge of core web technologies and how browsers work at a high level - An understanding of, and passion for, privacy and security on the web - Experience with programming in C/C++ or JavaScript - Drive for learning and delivering fundamental work across the entire stack Examples of projects and responsibilities - Automating, triaging, diagnosing and fixing web compatibility issues caused by Firefox's Enhanced Tracking Protection - Owning, delivering, prototyping or improving smaller-scale privacy-improving projects such as Copy Clean Link - Working to improve Protections UI, Site Identity, Site Permissions and Certificate Errors surfaces across Firefox - Consolidating and improving telemetry dashboards - <span style="font-weight:
Public Policy & Government Relations Manager
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Mozilla’s mission is to champion the internet as a global public resource, measured through a double bottom line : advancing that mission while succeeding in the market. At Mozilla Corporation, this means building and scaling trusted, user-first products , like Firefox , that give people meaningful control over their online experience, while supporting a more open, competitive, and sustainable tech ecosystem. The global public policy team enables this by shaping laws and regulatory frameworks that support our open source technologies, strengthen user choice and privacy, and ensure fair competition to create the conditions for responsible innovation and long-term growth.Do you like working on big-picture problems? Join us to influence the future of tech policy! In this role, you will engage with government stakeholders, industry partners, and civil society, advocating for public policy positions that align with our mission and support responsible innovation in technology. You will be responsible for raising the profile of Mozilla and Firefox in the UK, ensuring consistent engagement with our stakeholders, and coordinating input from subject matter experts on the global policy team. As such, you will lead end-to-end policy campaign development and execution across key issues such as privacy, competition, and AI in the UK, while contributing to and supporting related efforts at EU level. You will also collaborate with our internal product and engineering teams to provide expert advice on public policy implications related to the rollout of new products. This role reports to the Head of Public Policy EU. This is a high-impact role for someone who understands both the technical landscape and the policymaking process—and who wants to help build a better internet. What you'll do:</stron
Staff Operations Engineer
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security, and more. And we’re doing this without losing focus on our core mission - to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders - only to our mission. Along with thousands of volunteer contributors and collaborators worldwide, Mozillians design, build, and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: A Staff Operations Engineer leads the design, reliability, and evolution of hybrid-cloud and workplace infrastructure. This senior role spans teams, drives complex initiatives, sets technical direction, and ensures systems are scalable, secure, and efficient. This role combines technical execution with leadership , shaping architecture both directly and collaboratively. What you’ll do: Domain Architecture & Technical Direction - Own and evolve architecture within a defined infrastructure domain - Design and implement scalable, reliable systems spanning multiple teams or environments - Establish and promote best practices, patterns, and standards within the domain - Contribute to medium- and long-term technical strategy (typically 6-18 months) Complex Problem Solving & Execution - Lead delivery of ambiguous, high-impact infrastructure projects - Break down elaborate system problems into implementable solutions - Drive migrations, re-architectures, and performance/reliability improvements - Remain hands-on with critical systems and implementations Cross-Team Collaboration - Work across teams (IT, SRE, Security, Service Owners) to unify solutions. - Influence technical decisions through design reviews and collaboration - <span style="font
Senior Software Engineer, Cloud Engineering
To learn the Hiring Ranges for this position, please select your location from the Apply Now dropdown menu. To learn more about our Hiring Range System, please click this link. Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this role: Mozilla’s Cloud Engineering team seeks a Senior Software Engineer to mature, maintain, and build features for our Internal Developer Infrastructure Platform. You will work on creating standardized, scalable systems for CI/CD, Observability, Kubernetes optimization, environment bootstrapping, cost optimization, and more. Supporting the Infrastructure needs of the organization and identifying new opportunities to mature the path to production in a safe, cost effective way will also be an integral part of this role. What you’ll do: - Support infrastructure that development teams use to own and operate their services at Mozilla. - Guide technical decision-making and adoption of user-centric solutions. - Create Claude skills and design agentic workflows that improve developer productivity - Guide team members and promote engineering standard methodologies, with a focus on usability and maintainability. - Facilitate cross-functional collaboration for efficient and cohesive platform delivery. - Write proposals and decision briefs for new policies, processes, and platform functionality. - Create new features for the platform with a meaningful value proposition - Be trusted to resolve unclear but ur
Senior Platform Engineer, WebExtensions
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: The WebExtensions platform powers the add-ons ecosystem in Firefox, enabling millions of users to customize their browser while keeping safety and performance at the forefront. As a WebExtensions Engineer, you will help implement new extension capabilities, improve existing APIs, and ensure that extensions remain reliable across Firefox. As a Software Engineer on the WebExtensions team, you’ll bring a passion for exploring complex systems and creating experiences that balance developer power with user trust. You’ll work deep in the Gecko platform to evolve extension capabilities, and you’ll build UI features in Firefox that make extensions clear and manageable for users. Along the way, you’ll collaborate with experts across Mozilla and help advance cross-browser compatibility and the path toward standardization. Your work will keep extensions safe, powerful, and reliable for developers and millions of Firefox users. What you’ll do: - Implement and maintain WebExtensions APIs and Addon Management, balancing power, safety, and performance, as well as user interfaces in Firefox. - Debug and fix issues affecting extensions in Firefox. - Collaborate with product managers, QA, and the AMO engineering team to deliver features end-to-end. - Contribute to Mozilla-owned extensions and system add-ons. - Participate in open source workflows: code reviews, pull requests, and discussions in Bugzilla/GitHub. - Support extension developers by helping diagnose issues and improving tooling/documentation. Wh
Senior Engineering Manager, Web Apps
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. We are a small but growing company of 60+ people distributed across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, and new product experiences that help people and organizations work more effectively without giving up control to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity Thunderbird is growing beyond our free desktop and mobile applications, and we’re looking for a Senior Manager, Web Applications to lead day-to-day engineering execution and people management for the team responsible for MZLA’s hosted subscription products. This is a critical product and revenue area for MZLA. The Senior Manager will help the team launch, maintain, and improve hosted services with strong delivery discipline, clear ownership, reliable engineering practices, and a continued focus on quality, privacy, reliability, and user trust. This is a small, growing team, and the right person will be a hands-on technical manager who wants to stay close to the codebase, product direction, service reliability needs, release readiness, and engineering tradeoffs while also leading people and improving how the team operates. As the Web Applications team continues to mature, this role will require an engaged manager who can help create structure, solve problems, support execution, and build stronger systems around the work. This role requires consistent overlap with EST time zone working hours, and we strongly prefer candidates located in or closely aligned with this time zone. What you’ll do - Lead day-to-day engineering execution in a hands-on management capacity, ensuring priorities, ownership, timelines, risks, dependencies, and quality expectations are clear. - Manage Web Services engineers and contr
Senior Software Engineer - Engineering Workflow and CI
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team’s applications to develop, build, test, and deliver Mozilla’s core products. We are force-multipliers to enable Firefox developers to do their best work. What you’ll do: - Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows - Work with a geographically-distributed development team - Mentor other team members and be mentored by more senior team members - Collaborate with other teams by providing code review and technical direction - Look at data, make dashboards, identify trends in Firefox development workflow What you’ll bring: - Proven Python skills, including building services - Front-end development experience, including JavaScript proficiency - Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST - Solid understanding of databases and SQL - Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses - Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android - A passion
Senior Software Engineer, Firefox Security
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. What you’ll do: - Advance Firefox's security architecture and cryptography stack: Contribute to improvements in Firefox's core security systems, with a focus on cryptographic protocols, WebPKI, and security-sensitive web APIs. Help implement and maintain security features that support the evolution of public key infrastructure on the web. - Design and implement web platform security features: Develop and ship web platform features in collaboration with teammates and the broader web community. Contribute to standards-based, secure, and interoperable implementations across Firefox. - Improve browser reliability, performance, and resource efficiency: Investigate and resolve issues impacting stability, correctness, and performance. Analyze and improve memory usage and efficiency within a complex, multi-threaded browser environment. - Collaborate on security initiatives: Partner with engineers across teams to identify, prioritize, and address security issues. Participate in debugging, root cause analysis, and implementation of effective long-term solutions. - Contribute to technical design and planning: Participate in technical discussions, design reviews, and project planning for security-related initiatives. Help evaluate tradeoffs and contribute to engineering decisions within your area of work. What you’ll bring: - Strong software engineering and security fundamentals: Experience in software engineering, with proficiency in C/C++ and a solid understanding of security principles, including cryptographic protocols and implementations. - Experience building and maintaining complex software systems: Ability to contribute to the design, implementation, testing, and maintenance of software in large-scale or security-sensitive environments.</s
Senior Software Engineer - Engineering Workflow and CI
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team’s applications to develop, build, test, and deliver Mozilla’s core products. We are force-multipliers to enable Firefox developers to do their best work. What you’ll do: - Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows - Work with a geographically-distributed development team - Mentor other team members and be mentored by more senior team members - Collaborate with other teams by providing code review and technical direction - Look at data, make dashboards, identify trends in Firefox development workflow What you’ll bring: - Proven Python skills, including building services - Front-end development experience, including JavaScript proficiency - Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST - Solid understanding of databases and SQL - Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses - Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android - A passion
Senior Manager, Firefox Mobile Test Engineering
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders – only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: In support of our mission to make the internet a healthier place, we aim to make Firefox the best mobile browser for security, privacy, speed, and empowering user choice. Firefox Mobile is used by tens of millions of people across Android and iOS every month. The Test Engineering team is responsible for making sure that experience is excellent – through test automation infrastructure, observability tooling, and hands-on exploratory testing. We're growing this team's scope and ambition, and we're looking for a senior leader to own it. This is a role for someone who thinks about quality the way a great product manager thinks about users: with curiosity, with ownership, and with a bias toward finding the things that matter most. You'll set our overall test strategy, lead our exploratory testing program, and manage a team of engineers building the automation infrastructure and observability tooling that keeps Firefox Mobile healthy at scale. You'll manage a team of full-time engineers plus a group of contractors, and you'll work in close partnership with our Android and iOS engineering, product, and UX teams to help us all collectively drive greater development speed, developer ease, and product quality. What you’ll do: - In concert with senior mobile leadership, you will set and own Firefox Mobile’s overall quality strategy – not as a set of metrics to report, but as a product outcome to drive. - Manage our Test Automation Engineering, ensuring we understand and prioritize the highest impact work and detect bugs earlier in the process, in deep partnership with our iOS and Android dev teams - Oversee our observability work, including dashboards and automated reporting that give engineers early visibility into quality regressions, crash trends, and product health signals. - Lead our exploratory testing work, including teaching exploratory testing skills and structuring our exploratory testing program. - Partner closely with Pro
Senior Software Engineer - Engineering Workflow and CI
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: Firefox developers land code every day to delight users with new features and improve product performance and security. Every day, developers and managers use our team’s applications to develop, build, test, and deliver Mozilla’s core products. We are force-multipliers to enable Firefox developers to do their best work. What you’ll do: - Improve Firefox development workflows to reduce time spent testing and debugging test failures as well as more integration/automation of workflows - Work with a geographically-distributed development team - Mentor other team members and be mentored by more senior team members - Collaborate with other teams by providing code review and technical direction - Look at data, make dashboards, identify trends in Firefox development workflow What you’ll bring: - Proven Python skills, including building services - Front-end development experience, including JavaScript proficiency - Experience with Python frameworks (e.g., FastAPI, Flask, Django), Cloud Services (e.g., GCP, AWS) and REST - Solid understanding of databases and SQL - Experience with CI/CD systems (e.g., GitHub Actions, CircleCI) and test harnesses - Comfortable working cross-platform, familiar with at least 2 of: Windows, Linux, Mac, Android - A passion for enhancing developer productivity - Commitment to our values: - Welcoming differences - Being relationship-minded - Practicing responsible participation - Having grit Bonus points for: - A deep understanding of version control systems - Experience with containerization and continuous delivery/deployment, particularly with Docker - Experience with CI of large scale projects - Comfortable with data analysis What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: D LI-REMOTE Req ID: R3099 Hiring Ranges: Remote Germany €68.000 - €91.000 EUR
Marketing Specialist
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. Our small but growing distributed team includes 65+ people across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, and paid services to build independent, privacy-respecting alternatives to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity The Marketing Specialist at MZLA executes digital marketing activities that support Thunderbird's brand awareness, user growth, and product adoption goals. Working closely with the Marketing Manager, you'll implement marketing campaigns and communications across social media, blog content, email marketing, and other digital channels. This is a hands-on role for someone who takes satisfaction in producing and publishing high-quality content, coordinating campaign activities, monitoring engagement metrics, and ensuring consistent messaging across platforms. You're a strong communicator and digital marketer who loves content creation, campaign execution, and audience engagement. You enjoy bringing marketing strategies to life through thoughtful execution, strong writing, attention to detail, and effective cross-functional collaboration. What you’ll do - Execute day-to-day social media activities, including content scheduling, publishing, monitoring, engagement, and reporting. - Draft and publish blog posts, marketing emails, newsletters, and other digital content aligned with brand voice and campaign objectives. - Support integrated marketing campaigns, product launches, and promotional activities across multiple channels. - Monitor social media engagement, coordinating with internal teams when additional context or support is needed. - Maintain editorial and campaign calendars to ensure timely delivery of marketing activities. - Track and report on performance metrics, identifying trends and optimization opportunities. - Support email marketing and automation activities, including list management, campaign setup, and workflow maintenance. - Assist with customer surveys and feedback collection to inform marketing and product insights. - Coordinate with internal teams and external vendors to support campaign execution and content development. - Ensure marketing materials align with brand standards and messaging guidelines. - Support ad hoc marketing and communications projects as needed. What you bring - 3+ years of experience in marketing, communications, digital content, or a related role. - Demonstrated experience executing social media, email, and digital marketing activities across multiple channels. - Strong writing, copyediting, and proofreading skills with the ability to adapt messaging for different audiences and platforms. - Experience with social media management tools, email marketing platforms, content management systems, and digital marketing technologies. - Strong organizational skills and attention to detail, with the ability to manage multiple priorities and deadlines. - Ability to collaborate effectively across cross-functional teams in a distributed, asynchronous environment. - Proactive mindset with the ability to take ownership of work and follow projects through to completion. - Familiarity with marketing analytics and reporting tools. - Excellent verbal and written communication skills. - Ability to learn and responsibly use emerging technologies, including AI-enabled tools, to improve workflows. - Ability to support a global organization with understanding of different cultural dynamics and practices. Bonus points for - Experience supporting marketing activities for a global technology or software audience. - Familiarity with open-source communities or privacy-focused technology products. - Experience with survey and customer feedback platforms. - Basic experience using graphic design tools such as Canva or Adobe Creative Suite. - Familiarity with SEO and digital content optimization best practices. What success looks like You'll be successful in this role if you bring organized project management that consistently meets deadlines, improve engagement on social media and grow follower counts, and increase the volume of content across blog, social, and email channels without sacrificing quality. You proactively collaborate with other teams on content generation and respond thoughtfully to comments and community engagement. Work environment This is a full-time, fully remote position. You’ll join a distributed team of Thunderbird staff, open-source community members, and contributors from around the world. We rely on clear communication, thoughtful documentation, and collaborative decision-making to work effectively across time zones and disciplines. You'll be part of the marketing team, working closely with product, engineering, and community colleagues in a collaborative, fast-paced environment. Compensation & benefits We benchmark our base salaries to local markets and target the 60th percentile of the peer market. The salary ranges for this role are: - US: $72,000 - $86,000 USD We may consider candidates with strong skills but less than the required experience. Title, level and compensation will be determined based on qualifications and experience. In addition to competitive salaries, we offer a comprehensive benefits package designed to support your whole self. Work & career - Fully remote work & schedule flexibility - Company-provided laptop - Annual bonus program - Monthly remote work stipend - Annual professional development stipend - Industry conferences - Company all-hands and team gatherings Rest & play - 24 days PTO per year (prorated) - Your birthday - Year-end company shutdown - 9 wellbeing days - Public holidays - Other paid leave - Quarterly wellbeing stipend for personal / family activities Health & family - 401(k) contributions - Health, dental, & vision insurance - Disability insurance - Life insurance - Employee assistance program - Paid parental leave - Paid sick days Work eligibility Applicants must reside in and have permanent work authorization for the country location(s) specified in the posting. We are unable to consider applicants outside of these markets at this time. And, we do not provide visa sponsorship. How to apply Please apply directly through our career page . We carefully review every cover letter and screening question, so take the time to answer each fully. We value authentic, thoughtful responses that reflect your own experience and perspective. It is fine to use AI tools to polish your writing, but your answers should be your own. Candidates who submit generic or unoriginal AI-generated responses may be disqualified from further consideration. Our commitment to diversity, equity, and inclusion MZLA believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities and expressions. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. MZLA will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodations@thunderbird.net to request accommodation. LI-DNI
Senior Manager, Firefox Mobile Test Engineering
Why Mozilla? Mozilla Corporation is the non-profit-backed technology company that has shaped the internet for the better over the last 25 years. We make pioneering brands like Firefox, the privacy-minded web browser. Now, with more than 225 million people around the world using our products each month, we’re shaping the next 25 years of technology and helping to reclaim an internet built for people, not companies. Our work focuses on diverse areas including AI, social media, security and more. And we’re doing this while never losing our focus on our core mission – to make the internet better for people. The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren’t beholden to any shareholders – only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: In support of our mission to make the internet a healthier place, we aim to make Firefox the best mobile browser for security, privacy, speed, and empowering user choice. Firefox Mobile is used by tens of millions of people across Android and iOS every month. The Test Engineering team is responsible for making sure that experience is excellent – through test automation infrastructure, observability tooling, and hands-on exploratory testing. We're growing this team's scope and ambition, and we're looking for a senior leader to own it. This is a role for someone who thinks about quality the way a great product manager thinks about users: with curiosity, with ownership, and with a bias toward finding the things that matter most. You'll set our overall test strategy, lead our exploratory testing program, and manage a team of engineers building the automation infrastructure and observability tooling that keeps Firefox Mobile healthy at scale. You'll manage a team of full-time engineers plus a group of contractors, and you'll work in close partnership with our Android and iOS engineering, product, and UX teams to help us all collectively drive greater development speed, developer ease, and product quality. What you’ll do: - In concert with senior mobile leadership, you will set and own Firefox Mobile’s overall quality strategy – not as a set of metrics to report, but as a product outcome to drive. - Manage our Test Automation Engineering, ensuring we understand and prioritize the highest impact work and detect bugs earlier in the process, in deep partnership with our iOS and Android dev teams - Oversee our observability work, including dashboards and automated reporting that give engineers early visibility into quality regressions, crash trends, and product health signals. - Lead our exploratory testing work, including teaching exploratory testing skills and structuring our exploratory testing program. - Partner closely with Product, UX, and Engineering leadership to identify quality gaps and advocate for fixes – representing the user's perspective in technical conversations. - Manage and support a geographically distributed team. What you’ll bring: - 10+ years of experience in test engineering, including 5+ years in technical management roles. - A genuine philosophy about software quality – you have opinions about exploratory testing, test automation strategy, and how to build teams that actually improve products and processes. - Experience building or significantly transforming a testing practice, including hands-on knowledge of exploratory testing methods and test automation approaches. - Track record of building collaborative relationships with development teams and influencing how engineers think about quality – without owning all the testing yourself - Ability to synthesize qualitative and quantitative signals (crash rates, store ratings, user feedback, test results) into a coherent picture of product health and a clear set of priorities. - Strong communication skills and track record of effective partnership with Product, UX, and senior engineering leadership. - Able to grow and scale a distributed team members with a range of skills and backgrounds. - Commitment to our values: - Welcoming differences – Foster an inclusive and equitable team environment. - Being relationship-minded – Build trusting partnerships across Mozilla and the broader community. - Practicing responsible participation – Promote ethical and privacy-aware use of AI. - Having grit – Lead through ambiguity and pursue impactful goals with persistence and creativity. Bonus points for: - Hands-on experience with mobile testing on Android and/or iOS. - Familiarity with test automation frameworks for mobile (e.g. XCUITest, Espresso, or similar) - Experience working in open source environments - Background in or strong appreciation for user research and UX as inputs to quality What you’ll get: - Generous performance-based bonus plans to all eligible employees - we share in our success as one team - Rich medical, dental, and vision coverage - Generous retirement contributions with 100% immediate vesting (regardless of whether you contribute) - Quarterly all-company wellness days where everyone takes a pause together - Country specific holidays plus a day off for your birthday - One-time home office stipend - Annual professional development budget - Quarterly well-being stipend - Considerable paid parental leave - Employee referral bonus program - Other benefits (life/AD&D, disability, EAP, etc. - varies by country) About Mozilla Mozilla exists to build the Internet as a public resource accessible to all because we believe that open and free is better than closed and controlled. When you work at Mozilla, you give yourself a chance to make a difference in the lives of Web users everywhere. And you give us a chance to make a difference in your life every single day. Join us to work on the Web as the platform and help create more opportunity and innovation for everyone online. Commitment to diversity, equity, inclusion, and belonging Mozilla understands that valuing diverse creative practices and forms of knowledge are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but certainly not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientation s, gender identities, and expressions. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodation@mozilla.com to request accommodation. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. Mozilla will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. Group: C LI-REMOTE Req ID: R3095 Hiring Ranges: Remote UK £134,000 - £178,000 GBP
Technical Support Specialist
Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. Our small but growing distributed team includes 65+ people across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, and paid services to build independent, privacy-respecting alternatives to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s apps freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about MZLA and Mozilla: MZLA Technologies Corporation is the nonprofit-owned company behind Thunderbird and part of the Mozilla family. MZLA is separate from Mozilla Corporation and has its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity Thunderbird is growing, and we’re looking for a Technical Support Specialist to help deliver excellent support for Thunderbird users across our expanding product ecosystem, including our subscription products. This role is for someone who takes real satisfaction in resolving support requests with care, clarity, and technical precision. You enjoy working through a queue, diagnosing tricky issues, helping users get unstuck, and spotting patterns that can make support better for everyone. Every closed ticket, forum response, or app store reply represents a user who can get back to what they were trying to do. You’ll be part of the Support Operations team, working closely with support, product, engineering, documentation, and community colleagues. Your initial focus will be supporting Thunderbird’s subscription products as they scale, but you’ll also help users through community forums, app store reviews, and other support channels. This is a great opportunity for someone who loves technical support work, cares deeply about the user experience, and wants to help shape support practices for products that are still growing. What you’ll do - Manage technical support tickets from intake through resolution, with an initial focus on Thunderbird’s subscription products. - Provide timely, thoughtful, and empathetic support that helps users feel heard, understood, and effectively supported. - Troubleshoot Level 1 and Level 2 technical issues, including account setup, email configuration, SMTP, IMAP, JMAP, DNS, email authentication, and Thunderbird desktop client issues. - Triage incoming requests to determine whether the issue is user error, configuration-related, a product bug, or a feature request. - Escalate complex issues with clear reproduction steps, logs, environmental details, and user impact. - Maintain accurate and complete support records in Zendesk or similar systems. - Monitor and respond to technical questions in Thunderbird community forums. - Monitor and respond to app store reviews, initially for Android and later for iOS. - Identify recurring user pain points, documentation gaps, product confusion, and emerging trends across support channels. - Share systemic issues with support leadership, product, engineering, or documentation teams so we can improve the experience for all users. - Create and maintain user-facing documentation, FAQs, troubleshooting guides, and internal support playbooks. - Help support Thunderbird ideas, feedback, or community engagement channels. - Participate in an on-call rotation, generally one week at a time, with cadence depending on team size and operational needs. What you bring - 5+ years of technical support experience providing Level 1 and Level 2 troubleshooting for software products, web services, email systems, or IT environments. - Hands-on experience troubleshooting email protocols and client configuration issues, including SMTP, IMAP, JMAP, and account setup workflows. - Working knowledge of DNS fundamentals, including A, MX, and TXT records, as well as SPF, DKIM, and DMARC. - Familiarity with Mozilla Thunderbird or comparable desktop email clients. - 5+ years of experience using Zendesk or a similar CRM, help desk, or ticketing platform. - Strong troubleshooting skills and the ability to gather information, isolate variables, and resolve technical issues even when the initial information is incomplete. - Excellent written communication skills, with the ability to explain technical concepts clearly to users with different levels of technical knowledge. - Strong empathy, patience, and emotional intelligence when supporting frustrated or confused users. - Experience engaging with users in public or semi-public support channels, such as forums, app store reviews, issue trackers, or user communities. - A strong sense of ownership over support quality and the user experience. - Comfort working in a queue-based role with evolving processes, ambiguity, and minimal day-to-day supervision. - Ability to work remotely and asynchronously across time zones, with strong overlap with Eastern Time. - Comfort using AI tools for research, troubleshooting, technical learning, and workflow improvement while applying sound human judgment. Bonus points for - Experience with open source software communities and support models is a strong plus—you understand the collaborative, transparent ethos of open source and thrive in community-driven environments. - Familiarity with Linux, macOS, Windows, Android, and iOS. - Knowledge of email server administration, hosted email platforms, or mail infrastructure. - Experience responding to app store reviews, particularly on Google Play or the Apple App Store. - Proficiency in a second language; German is especially helpful. - Experience writing technical documentation, knowledge base articles, FAQs, or support playbooks. - Background in QA, bug triage, reproduction testing, or working closely with engineering teams. What success looks like You’ll be successful in this role if you are the kind of person who cares about both the individual user and the bigger pattern behind the issue. You don’t just answer the ticket in front of you; you notice when the same problem is showing up again and again. You document what you learn, share useful context with the team, and help reduce friction for future users. You bring patience to frustrating situations, precision to technical troubleshooting, and curiosity to ambiguous problems. You understand that support is not just about closing tickets. It is about helping people succeed, improving the product, and making the experience better for the next user. Work environment This is a full-time , fully remote position. You’ll join a distributed team of Thunderbird staff, open-source community members, and contributors from around the world. We rely on clear communication, thoughtful documentation, and collaborative decision-making to work effectively across time zones and disciplines. Compensation & benefits We benchmark our base salaries to local markets and target the 60th percentile of the peer market. The salary ranges for this role are: - US: $67,000 - $77,000 USD - Canada: $57,000- $67,000 CAD We may consider candidates with strong skills but less than the required experience. Title, level and compensation will be determined based on qualifications and experience. In addition to competitive salaries, we offer a comprehensive benefits package designed to support your whole self. Work & career - Fully remote work & schedule flexibility - Company-provided laptop - Annual bonus program - Monthly remote work stipend - Annual professional development stipend - Industry conferences - Company all-hands and team gatherings Rest & play - 24 days PTO per year (prorated) - Your birthday - Year-end company shutdown - 9 wellbeing days - Public holidays - Other paid leave - Quarterly wellbeing stipend for personal / family activities Health & family - 401(k) / RRSP contrib utions - Health, dental, & vision insurance - Disability insurance - Life insurance - Employee assistance program - Paid parental leave - Paid sick days Work eligibility Applicants must reside in and have permanent work authorization for the country location(s) specified in the posting. We are unable to consider applicants outside of these markets at this time. And, we do not provide visa sponsorship. How to apply Please apply directly through our career page . We carefully review every cover letter and screening question, so take the time to answer each fully. We value authentic, thoughtful responses that reflect your own experience and perspective. It is fine to use AI tools to polish your writing, but your answers should be your own. Candidates who submit generic or unoriginal AI-generated responses may be disqualified from further consideration. Our commitment to diversity, equity, and inclusion MZLA believes in the value of diverse creative practices and forms of knowledge, and knows diversity, equity and inclusion are crucial to and enrich the company’s core mission. We encourage applications from everyone, including members of all equity-seeking communities, such as (but not limited to) women, racialized and Indigenous persons, persons with disabilities, persons of all sexual orientations, gender identities and expressions. We are an equal opportunity employer. We do not discriminate on the basis of race (including hairstyle and texture), religion (including religious grooming and dress practices), gender, gender identity, gender expression, color, national origin, pregnancy, ancestry, domestic partner status, disability, sexual orientation, age, genetic predisposition, medical condition, marital status, citizenship status, military or veteran status, or any other basis covered by applicable laws. MZLA will not tolerate discrimination or harassment based on any of these characteristics or any other unlawful behavior, conduct, or purpose. We will ensure that qualified individuals with disabilities are provided reasonable accommodations to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment, as appropriate. Please contact us at hiringaccommodations@thunderbird.net to request accommodation.
Company Details
Registered Agents
No registered agents are associated with this company yet.