React Native Mobile Engineer

Job Description:

The React Native Mobile Engineer will design, build, and maintain scalable, high-performance cross-platform applications. This role partners closely with product, design, and engineering teams to deliver polished mobile experiences while owning technical decisions, improving system architecture, and mentoring others. You’ll bring deep React Native expertise while balancing speed, quality, and long-term maintainability.

Thinking ahead, seeing beyond, and building together.

With offices in Michigan and Minnesota and employees across the globe, we put people at the heart of everything we do. Our values are part of what makes us different — for our employees, clients, and the communities in which we live and work. At client, our purpose is progress, and we are out to improve lives by keeping humanity at the core of every solution.

What You’ll Accomplish

• Design, develop, and maintain high-quality React Native applications for iOS and Android.
• Own features end-to-end, from technical design through implementation, testing, and release.
• Collaborate with product managers, designers, and engineers to translate requirements into scalable mobile solutions.
• Build and maintain native modules when needed, partnering with iOS and Android codebases.
• Improve application performance, stability, and developer experience through profiling, refactoring, and tooling enhancements.
• Contribute to architectural decisions and help evolve mobile development standards and best practices.
• Participate in code reviews, CI/CD improvements, and production release processes.
• Mentor and support other engineers through technical guidance and collaboration.

What You’ll Bring

• Advanced Programming – Expert in TypeScript and JavaScript (ES6+), async patterns, and functional programming. Strong working knowledge of Java, Kotlin, Swift, and Objective-C for native integrations.
• React Native Expertise – Deep experience with React Native architecture (Fabric, TurboModules, JSI), Metro configuration, and native modules. Proficient with React Navigation, Zustand, and React Query.
• Native Development – Skilled in building and debugging native modules using Xcode and Android Studio. Strong understanding of iOS/Android build systems and platform-specific issues.
• Git & CI/CD – Advanced Git workflows and code review practices. Hands-on experience with Bitrise, Fastlane, GitHub Actions, and CircleCI for automated builds and releases.
• Testing – Proven ability to design and maintain robust testing strategies using Jest, React Native Testing Library, Detox, and Appium.
• API Integration – Strong experience designing and consuming REST APIs. Skilled with Postman, Insomnia, and network debugging tools like Charles, Flipper, and RN Debugger.
• Performance Optimization – Experienced in profiling and optimizing apps using Hermes, Flipper, and native tools; focused on memory, bundle size, and startup performance.
• State Management & Architecture – Deep knowledge of Redux, MobX, Zustand, Recoil, and architectural patterns like MVVM and Clean Architecture.
• Agile & SDLC – Extensive experience in Agile/Scrum environments with Jira, Linear, and Azure DevOps.
• Cross-Platform Strategy – Strong judgment on code sharing vs. native implementations across platforms.
• Debugging & Problem Solving – Expert at diagnosing complex issues across JavaScript, native code, and build systems.
• Command Line & Tooling – Advanced CLI skills, shell scripting, and package management across macOS, Linux, and Windows.
• Collaboration & Leadership – Clear communicator, strong mentor, and effective technical leader.
• Ownership – Takes full ownership of features from design to deployment; proactively addresses technical debt and process improvements.

Bonus Experience

• Native iOS/Android Development – Production experience building native iOS (Swift/Objective-C) or Android (Kotlin/Java) applications outside of React Native context.
• Advanced Automation – Experience with automated testing frameworks (Maestro, Detox, Appium) and building robust E2E test suites integrated into CI/CD pipelines.
• DevOps & Infrastructure – Knowledge of app distribution platforms (TestFlight, Firebase App Distribution), crash reporting (Sentry, Crashlytics), analytics integration, and feature flag systems.
• Code Signing & Certificate Management – Deep understanding of iOS provisioning profiles, certificates, and Android keystore management. Experience with Fastlane Match or similar automated certificate management.
• Accessibility & Internationalization – Strong understanding of WCAG guidelines, implementing accessible React Native components, and managing multi-language support with i18n libraries.
• Security Best Practices – Knowledge of mobile security patterns including secure storage (Keychain, KeyStore), certificate pinning, code obfuscation, and protecting against common vulnerabilities.

Education

• Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience.
• At least 5-7 years of professional software engineering experience, with significant time spent in mobile development.