Design, develop and maintain mobile applications using React Native; build and enhance web components using React.js for browser-based UIs; implement and manage complex UI workflows and state using XState finite state machines and statecharts; develop statement‑related features including rendering navigation and user interaction workflows; collaborate with designers, product managers and backend developers to create seamless user experiences; ensure responsive design, performance optimization and cross‑platform consistency; write clean maintainable code and contribute to technical documentation; participate in code reviews, testing and continuous improvement.