Senior Mobile Cross Platform Engineer

• As a mobile platform engineer, you’ll help shape the future of Chime’s React Native app, building the infrastructure and tooling that make development faster, safer, and more scalable for hundreds of engineers working alongside AI
• You’ll thrive in this role if you enjoy building for developers, solving complex technical problems, and multiplying your impact on others while delivering a best-of-class experience for our 10M+ monthly active members
• Build and maintain internal frameworks, developer tooling, and infrastructure
• Collaborate with product and engineering teams to improve app quality, performance, and observability
• Identify bottlenecks and deploy operational efficiencies to automate mobile CI/CD and release orchestration, reducing manual effort and increasing reliability
• Design and improve tooling to reduce friction in the developer loop and maximize engineering velocity
• Mentor engineers and raise the bar on technical standards, code quality, and delivery practices through design reviews, guidance, and example
• Partner with QA to lead Chime’s mobile release process across iOS and Android
• Build and scale AI-enabling app development infrastructure to support increased product velocity

Benefits

• Physical: We believe in taking care of your physical health, so as a Chimer you’ll get medical, dental, and vision insurance, as well as benefits to support your physical activity, family planning, and all of your little Chimers
• Emotional: We know that staying healthy involves a lot more than doctor’s checkups. We partner with Modern Health to help you navigate your mental health, give monthly Take Care of Yourself Days, and want you to take time off when you need it
• Financial: We want Chimers to save and feel financially supported, so we offer savings plans with competitive matching, as well as access to financial planning and legal assistance so that you can find your financial peace of mind
• Social: We’ll celebrate your milestones together with travel stipends, swag, and high-fives and make sure you’re connected to fellow Chimers through our Chime Resource Groups (CRGs) and company events

• 5+ years of experience in cross-platform, mobile development, ideally with React Native
• Experience with iOS and Android build, configuration, and distribution systems
• Familiarity with observability and analytics tools like Bugsnag, Datadog, Sentry, or Hex
• Deep understanding of server-client architecture, leveraging GraphQL and performance profiling (e.g., memory pressure, screen latency, optimizing time to interactive, preloading)
• Shipped apps that are used by millions of users
• Experience with mobile build infrastructure platforms such as Bitrise, CircleCI, or GitHub Actions
• Strong fluency in TypeScript and familiarity with React, React Native
• A collaborative mindset, excellent communication skills, and a drive to document and share what you build
• A track record of profiling and improving app performance
• Scaled mobile quality practices and testing frameworks
• Familiarity with state management tools like Redux, React Context, AsyncStorage, or MMKV
• Experience building the infrastructure that supports AI-native mobile development
• Experience with feature flag systems, runtime controls, or OTA delivery frameworks (e.g., Expo Updates, CodePush)