Build, enhance, and maintain modern SPA applications using React and TypeScript. Create reusable component libraries and scalable design systems. Develop responsive, accessible, and intuitive interfaces aligned with UX best practices. Work with real-time data, visualization components, and performance-optimized interactions. Integrate frontend applications with backend services through structured API contracts. Partner with backend and product teams to shape data flows and interaction patterns. Implement resilient error-handling, offline-ready capabilities, and fault-tolerant UX behavior. Contribute to frontend architecture decisions, build tooling, and technical roadmap. Define and uphold code quality, testing standards, and engineering workflows. Conduct performance profiling and optimize Core Web Vitals metrics. Maintain high-quality documentation and participate in regular design and code reviews.