Full-Stack MERN Developer | React, Node.js, Next.js | Building scalable web apps & AI-powered solutions.

github

leetcode

Swarnabha Dutta  • Peerlist

LLM-powered full stack code analysis platform that detects bugs, security issues, and optimization opportunities using Google Gemini API. • Designed scalable MERN architecture with modular Node.js/Express backend and React frontend • Implemented Redis intelligent caching, reducing backend latency by 93% (19s → 1.3s) • Improved repeated response speed by up to 667% (20s → 30ms), significantly reducing LLM API cost • Built secure authentication, rate limiting, and file upload handling for production reliability • Integrated CI/CD deployment using Render Deploy Hooks for automated backend releases Tech: React, Node.js, Express.js, MongoDB, Redis, LLM APIs, CI/CD

AI Code Reviewer

Full stack healthcare platform enabling secure doctor appointment booking and real-time consultation with scalable backend architecture. • Built using Next.js, PostgreSQL, Prisma ORM with role-based workflows for Patient, Doctor, Admin • Implemented atomic database transactions ensuring consistency in payments and appointment scheduling • Integrated real-time video consultation using Vonage API with secure session management • Optimized performance achieving Lighthouse score 93.5 with fast load times (LCP 0.6s) Tech: Next.js, PostgreSQL, Prisma, REST APIs, Video API integration