Develop and maintain a responsive and user-centric web application using React/NextJS and TypeScript. Implement best practices and optimizations to maintain the app's exceptionally fast and responsive performance. Support the integration and management of real-time data and WebSockets. Work closely with the Senior Full-Stack Developer to ensure seamless front-end and back-end integration. Tackle complex technical challenges with effective, innovative solutions. Ensure the delivery of clean, maintainable, and well-documented code.