Reddit

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . The iOS Platform team sets the technical direction for iOS at Reddit. Our customers are primarily other engineers. It’s our job to help improve developer efficiency by providing libraries/APIs/frameworks, monitoring performance, building shared components, improving build tools, etc. In the codebase, we own the core components of the app such as the networking and caching stack. We set the direction in which the codebase builds by defining which design patterns and technologies to employ at Reddit. This role will enable us to architect our iOS app to scale for the next 100M+ DAUs. They will help establish the right standards in iOS development and will help in improving the overall iOS development experience at Reddit. In addition, they will mentor senior iOS engineers across Reddit and will be seen as a go-to person for any challenges on iOS App architecture. As a Principal Engineer in the iOS Platform team, you will be responsible for designing a solid foundation for our iOS application development. You will have the company-wide scope, impact, and responsibility in shaping the future of iOS development at Reddit. You will champion the technology selection, best practices in Reddit’s iOS application development. In addition, you will act as an Architect for the iOS application at Reddit. What you’ll do - Own the architecture of Reddit’s iOS Mobile App and make it scale to the next 100M+ DAUs. Propose ideas/solutions to reach our vision of “making Reddit’s Mobile Apps best-in-class.” - Identify the gaps in our current iOS App Architecture, and lead redesign of the iOS platform to improve modularity, performance, and quality. - Define, measure, and execute on key user-facing performance goals, specifically minimizing App Not Responding (ANR) rate, reducing app launch time (Time to Interactive/TTFF), and eliminating slow/dropped frames. - Improve observability and harden data quality for all key performance areas, including establishing reliable telemetry, monitoring, and guardrails for ANR rate, app launch time, and slow/dropped frames. - Drive a company-wide culture of performance, ensuring that every iOS engineer at Reddit has the tools and skills needed to own the performance of their product surfaces. - Mentor iOS developers across the company. - Be the go-to person for developers on complex problems in iOS development. What we expect from you - Deep experience-based understanding of how to build mobile applications at scale. - You are a strategic thin

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . We are looking for a Principal Technical Program Manager, Performance to lead company-wide programs that improve the speed, reliability, and quality of Reddit’s user experience. This role will partner with engineering leaders in product engineering, infrastructure, client platforms, data science, and senior technical leadership to make performance a measurable, durable, and consistently protected part of how Reddit builds and ships software. Performance is foundational to user trust, engagement, and long-term growth. This role will help Reddit build the path for sustained performance improvement: broad enough to work across platforms and organizations, focused enough to address current issues, and measurable enough to prove whether we are improving the lived experience of users. Just as importantly, this role will help bring teams along for that change, building trust across functions and helping Reddit evolve how we make performance part of our engineering culture. Who We Are At Reddit, Technical Program Managers use technical judgment to define and drive large programs across multiple teams. They partner closely with engineering and product leaders to develop strategies and solutions, drive project impact, execute on planning, and gain alignment with cross-functional stakeholders. They engage with teams to determine root causes, identify and select alternative solutions, and use their technical expertise to understand the effects, impacts, and risks of a solution. Above and beyond program-level impact, they build execution processes and reduce inefficiencies to build overall scale. This role reports into the TPM team within Reddit's Engineering Operations organization. As a Principal TPM, you will operate at executive and company scope, shaping strategy across multiple organizations, creating alignment where ownership is ambiguous, and setting the bar for how Reddit executes complex technical programs. High-quality technical program management is a distinct and high-value skill set, and while this role does not involve direct people management, it is part of Reddit's organizational leadership. At this level, success means delivering programs while also changing how teams think, collaborate, and make decisions so that new systems, standards, and behaviors can take root across the company. What You'll Do You will own and drive programs across Reddit's Performance portfolio, spanning mobile and web performance, client reliability, critical user journeys, observability, experimentation guardrails, release quality, and long-term performance operating mechanisms. You will partner deeply with engineering teams as a tech