Principal Engineer, Android Performance

Remote - United StatesRemotePosted January 29, 2026

Job Description

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 116 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.

The Android Platform team sets the technical direction for Android 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 Android app to scale for the next 100M+ DAUs in entrenched and emerging markets. They will help establish the right standards in Android development and will help in improving the overall Android development experience at Reddit. In addition, they will mentor senior Android engineers across Reddit and will be seen as a go-to person for any challenges on Android App architecture.

As a Principal Engineer in the Android Platform team, you will be responsible for designing a solid foundation for our Android application development. You will have the company-wide scope, impact, and responsibility in shaping the future of Android development at Reddit. You will champion the technology selection, best practices in Reddit’s Android application development. In addition, you will act as an Architect for the Android application at Reddit.

What you’ll do

Own the architecture of Reddit’s Android 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 Android App Architecture, and lead redesign of the Android platform to improve modularity, performance, and quality.
Help us improve the developer experience by reducing the build times, by providing a modular architecture, and improving the developer workflows.
Help us build the technical foundation for rapid experimentation without compromising on quality.
Mentor Android developers across the company.
Be the go-to person for developers on complex problems in Android development.

What we expect from you

Deep experience-based understanding of how to build Android applications at scale.
You are a strategic thinker who thrives on developing a long-term technical foundation and has a passion for developing scalable, well-designed software that improves people’s lives globally.
10+ years of Software development experience with at least 5+ years in designing/developing Android applications.
Experience in influencing larger (200+ engineers) organizations on technical direction/best practices related to Android
Experience with modern Android development frameworks such as Jetpack Compose and Kotlin coroutines.
Passion for developing scalable, well-designed software that improves people’s lives globally.
Experience working with cross-functional teams such as design, product, data teams to deliver great user experiences.

Benefits