At National Informatics Centre (NIC), I developed a two-tier transportation management system to automate billing across warehouses, wholesalers, retailers, and commodity distribution.
I automated transportation cost calculations and bill generation based on commodity, distance, and geographical area. This reduced billing preparation from approximately 3–4 hours to around 10 minutes, and generated downloadable Excel billing sheets from predefined templates.
I built LnkShrt, a full-stack URL management platform with custom aliases, password protection, expiration, UTM parameters, and QR codes. I also implemented custom-domain ownership checks and deployed the backend and Redis on AWS EC2.
For Study Buddy, I built a production-grade authentication system and a RAG pipeline that lets users query personal notes with cited, source-linked answers. I added multi-tenant data isolation, Redis-backed rate limiting, automated backend tests, and background jobs for embedding generation and transactional email.

