Senior Software Engineer - Mobile (React Native)
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Summary
Senior mobile engineer acting as the technical lead for React Native iOS/Android apps in the crypto trading space — owning architecture, code quality, reviews, mentoring, and release processes. Core stack: React Native, TypeScript/JavaScript, and native mobile tooling.
Job Responsibilities
- Architect, build, and maintain high-performance React Native applications for iOS and Android
- Act as technical lead for mobile, owning architecture decisions, coding standards, and best practices
- Ensure code quality, performance, stability, and scalability across the entire mobile codebase
- Lead and conduct thorough code reviews, setting a high engineering bar
- Mentor and guide other mobile engineers, supporting their technical growth
- Collaborate closely with product, backend, design, and QA teams to deliver features end-to-end
- Proactively identify and resolve performance bottlenecks, memory issues, and app stability risks
- Define and improve mobile development workflows, testing strategy, and release processes
- Stay current with React Native, iOS, and Android ecosystem changes and recommend improvements
Core Requirement
- 8+ years of professional mobile development experience (iOS, Android, or both)
- 3+ years of hands-on React Native experience in production apps
- Strong leadership experience as a tech lead or senior engineer, with ownership of mobile code quality
- Expert-level TypeScript / JavaScript knowledge and clean code practices
- Solid understanding of mobile app architecture, performance optimization, and memory management
- Experience working with native mobile tooling (Xcode, Android Studio, Gradle, CocoaPods, etc.)
- Strong experience integrating with REST APIs, authentication flows, and secure data handling
- Familiarity with mobile CI/CD pipelines, app store release processes, and versioning strategies
- Ability to make pragmatic technical decisions and communicate trade-offs clearly
Nice to Have
- Experience with Redux, Zustand, or other state-management patterns
- Automated testing (Jest, Detox, E2E testing)
- Experience with GraphQL
- Performance profiling and crash analytics (e.g. Firebase, Sentry)
- Exposure to crypto, fintech, or web3 products
What Youll Get:
- Competitive salary and benefits
- High ownership and real technical influence over a core product
- Opportunity to work on complex, high-performance apps in the crypto trading space
- Global, remote-first team with strong engineering culture
- Fast-moving environment where your decisions directly impact users