Hi, I'm Medhashis, a backend engineer from West Bengal, India.

I'm new to Contra and to freelancing, but not new to building real software. I build the parts of an app that users don't see but everything depends on: APIs, databases, payments, and servers. I've worked on production systems, from a nationwide banking chatbot handling around 100K active sessions at UCO Bank, to a sports management platform used by district and state authorities.

Right now I'm building ERPInv, my own SaaS product. It lets Indian retail shops launch a branded online store in under 3 minutes, with GST invoicing, inventory, and POS built in. I designed and built the whole thing myself, including multi-tenant architecture, Razorpay subscription billing, and deployment.

Got a vibe-coded app that's falling apart? AI tools can get you a working demo fast, but the code often breaks when real users show up. I fix that. I go through the codebase, find what's broken or insecure, clean it up, and get it working properly so you can launch.

What I can help you with

Fixing and cleaning up AI-generated (vibe-coded) codebases

Backend development in Laravel or Node.js

REST APIs and real-time features (WebSockets)

Database design (MySQL, Redis, MongoDB)

Multi-tenant SaaS, user roles and permissions

Payment integration (Razorpay)

Docker setup and deployment

GST invoicing for Indian businesses

I can also do frontend work in React and Next.js when a project needs it.

If you have a product idea, an app that needs fixing, or a backend that needs to scale, message me. I'm open to remote projects.

Portfolio: medhashismaiti.com | GitHub: mdhmaiti