• Maintain, enhance, and optimize RESTful APIs built using Django, Flask, or FastAPI. • Work on authentication, authorization, and database integration using PostgreSQL. • Contribute to API design, documentation, and versioning best practices. • Build and maintain responsive and performant React components using TypeScript/JavaScript, HTML, and SCSS. • Ensure seamless integration between frontend and backend services. • Write and maintain unit, integration, and API tests to ensure robust and reliable code. • Collaborate with QA engineers to improve automation coverage and CI/CD processes. • Participate in code reviews, deployment readiness checks, and release planning. • Work with architects on containerization (Docker) and multi-tenant application setup. • Assist in managing application deployments on AWS (EC2, ECR, S3). • Debug production issues across the full stack (frontend, backend, database). • Monitor performance, identify bottlenecks, and propose long-term improvements.