Design, develop, and maintain full-stack web applications using modern frameworks and technologies. Collaborate with cross-functional teams to gather requirements and translate them into technical specifications. Build responsive and accessible user interfaces using front-end technologies such as React, TypeScript, and modern CSS. Develop scalable and efficient backend services using Node.js, Express, or similar frameworks. Implement and manage RESTful APIs and GraphQL endpoints for seamless data flow between frontend and backend systems. Ensure database performance and integrity through optimized queries, indexing, and schema design (e.g., PostgreSQL, MongoDB). Integrate third-party services including payment gateways, analytics tools, and authentication providers. Conduct code reviews, write unit and integration tests, and enforce best practices for code quality and security. Monitor application performance and troubleshoot issues in production environments using observability tools....