The React Native Engineer will be responsible for designing, developing, and operating mobile applications based on React Native. This includes designing and maintaining common UI and business logic libraries, leading new features from planning to release, continuously improving quality and performance through performance monitoring and refactoring, and providing technical insights for product and service roadmap establishment. The engineer will also be involved in coaching, mentoring, and enhancing the code review culture for junior engineers. The role requires the engineer to have experience building a product from scratch.