Designed and deployed full stack web applications with modular Node.js/ Express backends and PostgreSQL databases, ensuring scalability and maintainability Integrated JWT-based auth, role based access control and protected routes for user access control and secured sensitive user data for active users Built and integrated WebRTC-based video chat app with encrypted signaling, and secured server Integrated payment gateways (Stripe), OAuth2 login (Auth0), Google Maps API, streamlining onboarding and payment workflows Automated CI/CD using GitHub Actions; deployed to AWS S3/EC2 and Firebase, reducing release cycles from days to hours Reused and authored frontend React components, enhancing UI consistency and cutting development time by 30%