Senior Mobile Cross Platform Engineer

Responsibilities

• Build and maintain internal React Native frameworks, developer tooling, and shared infrastructure.
• Collaborate with product and infrastructure teams to improve app quality, performance, and observability.
• Help automate mobile CI/CD and release orchestration, reducing manual effort and increasing reliability.
• Drive mobile platform upgrades and manage compatibility across native modules and third-party libraries.
• Design and improve tooling that saves engineers time and helps them resolve issues independently.
• Partner with QA to lead Chime’s mobile release process across iOS and Android.
• Write documentation and guidance that scales your knowledge and empowers other engineers.

Requirements

• 5+ years of experience in cross-platform, mobile development—ideally with React Native.
• Strong fluency in TypeScript and familiarity with React, React Native, and related libraries.
• Experience with iOS or Android build, configuration, and distribution systems.
• A track record of profiling and improving app performance.
• Familiarity with observability and analytics tools like Bugsnag, Datadog, Sentry, or Amplitude.
• Knowledge of GraphQL, Apollo, and schema generation.
• Experience with mobile CI/CD tools such as Bitrise, CircleCI, or GitHub Actions.
• A collaborative mindset, strong communication skills, and a drive to document and share what you build.

Nice-to-Haves

• Experience with feature flag systems, runtime controls, or OTA delivery frameworks (e.g., Expo Updates, CodePush).
• Experience building and deploying AI-supported engineering workflows, leveraging tools like Cursor, Claude Code, or Figma Connect.
• Worked on mobile apps used by millions of users.
• Familiarity with state management tools like Redux, React Context, AsyncStorage, or MMKV.
• Helped define and scale mobile quality practices and testing frameworks.

Compensation

• Base salary: $164000 - $227000 (may be higher depending on location, skills, qualifications, and experience).
• Eligible for bonus, competitive equity package, and benefits.