📱 App Infrastructure (React Native) Engineer
Builds and maintains Expo-based React Native infrastructure for iOS/Android apps, optimizes performance with New Architecture tools, and creates developer tooling for faster shipping while ensuring reliability. Requires 3+ years React Native experience and Expo expertise.
Responsibilities
- Maintain and evolve our Expo infrastructure, ensuring smooth upgrades and optimal configuration as we scale
- Leverage React Native's New Architecture and latest tooling (React Profiler, etc.) to identify and eliminate performance bottlenecks
- Build and maintain iOS-specific features like App Clips, Live Activities, and Widgets to create seamless user experiences
- Work with our close partners at Expo & Software Mansion, by testing out new feature releases and providing feedback
- Create tooling and infrastructure that improves developer velocity and code quality across the mobile team
- Establish monitoring and observability systems to track app performance, release health, and user experience metrics
- Collaborate with both product engineers and other infrastructure engineers to ensure infrastructure decisions enable feature development rather than constrain it
- Own and continuously improve our weekly app release process, from build to store deployment
Requirements
- 3+ years of experience building mobile applications with React Native
- Experience with Expo and managing mobile build/deployment infrastructure
- Strong understanding of New Architecture, React Compiler, and modern performance optimization techniques
- Track record of improving developer experience using CI/CD automation, observability systems (such as Sentry), and infrastructure tooling
- A builder’s mindset — you enjoy automating, optimizing, and empowering teams through great tooling
- Deep sense of ownership and dedication to delivering ambitious outcomes on fast timelines
- A collaborative, pragmatic approach — you care about outcomes more than ego
Compensation
- Anticipated annual salary: $145k-$205k, plus a generous equity package
- 401(k) with up to 6% matching
- Comprehensive health, dental, and vision insurance
- Free OneMedical membership, telehealth, and virtual mental health services
- Commuter benefits & contributions towards ClassPass and Citibike memberships
- Take what you need paid time off
- 14 paid holidays
- Parental leave
- Quarterly stipend to plan your own party
- Semiannual team off-sites
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