I will debug and fix your nodejs, express, mongodb or javascript backend

**Is your Node.js or Express app broken and you don't know why?**

I'll find the bug, fix it cleanly, and explain exactly what was wrong so it doesn't happen again.

**What I can fix:**

- API routes not working or returning wrong responses

- MongoDB / Mongoose query errors

- Authentication & middleware issues (JWT, sessions)

- WebSocket connection problems

- Server crashes and unhandled errors

- Environment variable and deployment issues

- Redis connection and caching issues

**What I need from you:**

- Your code (GitHub link or zip file)

- A clear description of the bug

- Any error messages or logs

**What you'll get:**

- Fixed, working code

- A clear explanation of what was wrong

- Fast delivery most bugs fixed within 24 hours

- Honest communication throughout

**Why me?**

I'm a backend developer with real hands-on experience in Node.js, Express, MongoDB, and WebSockets. I don't just patch things I fix them properly so they don't break again.

I've also built a real-time secure chat application from scratch, so I understand backend systems at a deep level.

**Not sure if I can help?** Message me before ordering I'll give you an honest answer.