React Native Developer (Freelance)

What you will be doing

We are seeking a highly skilled Senior Freelance React Native Developer to join our team and play a key role in building a new mobile application. This is a full-time contract for an initial phase of 3–4 months, with a strong potential for extension. Working closely with our Tech Lead, design, and product teams, you will help build a high-performance marketplace application for both iOS and Android, focusing on a clean architecture and a polished user experience.

Responsibilities

• Develop a high-performance, responsive, and accessible mobile application for iOS and Android using React Native.
• Contribute to and implement a clean, scalable, and maintainable codebase, using modern React patterns and state management solutions.
• Collaborate with the backend team.
• Implement complex and pixel-perfect UIs based on designs from our team, ensuring a smooth and intuitive user experience.
• Integrate third-party services and native device APIs as needed (e.g., push notifications, authentication, analytics).
• Optimise the application for performance, including smooth animations (60fps), efficient memory usage, and fast load times.
• Write clean, well-documented, and thoroughly tested code, including unit and integration tests.
• Contribute to the CI/CD pipeline and the deployment process for the Apple App Store and Google Play Store.

We need you to have

• 5+ years of professional software development experience, with at least 3+ years focused on mobile development using React Native.
• Expert proficiency in React Native, JavaScript, and TypeScript, with a strong portfolio of successfully delivered production apps.
• Deep experience with state management solutions in the React ecosystem (e.g., Redux, Zustand, React Context API).
• Proven experience integrating with RESTful APIs and/or GraphQL, and handling complex data structures.
• Strong skills in implementing internationalisation (i18n) and localisation (l10n) in a React Native application.
• Demonstrated expertise in mobile app performance optimisation, debugging, and ensuring a high-quality user experience.
• Experience with mobile testing frameworks such as Jest and React Native Testing Library.
• Proficiency with version control using Git/GitHub and working in a collaborative team environment.
• Familiarity with CI/CD pipelines (e.g., App Center, GitHub Actions) and the complete submission process for both app stores.
• Experience with native iOS (Swift/Objective-C) or Android (Kotlin/Java) development, including writing native modules, is a strong plus.

Benefits

Employment Type

• Type: Freelance/Contractor
• Start Date: ASAP (ideally starting Monday, March 16th)
• Duration: ~3–4 months for the initial phase (until June/July), with strong potential for extension.
• Capacity: Full-time, 40 hours per week (Mon-Fri).
• Location: Berlin / Germany / Remote (CET +/- 2h).

Please provide your hourly or daily rate with your application.