We are looking for an experienced Mid-level React Native Developer to join our team and contribute to a fast-growing commercial mobile product used by thousands of users. You will work with an active production codebase, deliver new features, improve the app's stability and performance, and contribute to technical decisions. What you will do: Develop and maintain a mobile application using React Native and TypeScript. Work with the existing production codebase and improve its structure and quality. Implement new features and contribute to UX improvements. Diagnose and fix production issues and monitor app stability. Collaborate with frontend, backend, QA, and DevOps teams. Integrate the application with third-party APIs and services. Maintain technical documentation. Participate in code reviews and contribute to engineering best practices. Requirements: 3+ years of experience with React Native. Strong knowledge of JavaScript and TypeScript. Solid understanding of mobile application architecture. Experience working with production environments and real users. Ability to work with legacy or imperfect code and improve it incrementally. Strong analytical and problem-solving skills. English and Russian at B2 level for communication with stakeholders and the team. Additional experience we value: A background in high-load mobile applications. Previous work with CI/CD processes and tools such as Fastlane, Bitrise, or GitHub Actions. A track record of mobile performance optimization, including profiling, reducing app size, and improving rendering performance. Previous work with native modules for iOS and Android.