Senior React/React Native Software Engineer (Contract, Brazil)

Significant development experience with React Native and/or React Proven track record of shipping production applications Expert knowledge of React Native and/or React architecture, navigation patterns, and performance optimization Experience with state management solutions (Redux Toolkit, Zustand, Context API, or similar) Strong understanding of web and/or mobile app lifecycle, memory management, and performance best practices Proficiency with platform-specific implementations (iOS/Android) and native module integration (nice to have) Knowledge of mobile-specific UI/UX patterns and responsive design principles Experience integrating RESTful APIs and GraphQL endpoints Knowledge of offline data synchronization and caching strategies Understanding of accessibility standards and internationalization Practical experience of delivering in an agile environment Deep understanding of versioning control tools - Git in particular Excellent analytical and multitasking skills Excellent communication and collaboration skills Empathy and people skills

Designing & building applications using React Native and/or React Supporting component design, development and maintenance Assisting with defining structured practices, especially in source code management, building and deployment Designing and implementing data fetching and persistence solutions Optimising performance in applications for maximum speed and scalability Getting feedback from users and clients, and building solutions for them Assisting with the analysis of client requirements Working with and supporting Technical Leaders in project execution and timely delivery Collaborating with client teams