I will fix and debug your node js express js backend professionall


About this gig
Is your Node.js or Express.js backend throwing errors, crashing, or behaving unexpectedly? I will find and fix the issue fast.
With 4 years of professional backend development experience, I have debugged and resolved issues in production-grade systems including REST APIs, authentication flows, database queries, and microservices.
What I can fix:
- Node.js and Express.js errors and crashes
- REST API issues (broken routes, wrong responses, CORS errors)
- JWT authentication and authorization bugs
- Database query errors (MySQL, PostgreSQL, MongoDB)
- Async/await and Promise issues
- npm package conflicts and dependency errors
- Environment and configuration issues
What I need from you:
- Your code via GitHub link or zip file
- Description of the bug and steps to reproduce
- Error logs if available
I will fix the bug, explain what caused it, and deliver clean working code. If I cannot fix it, you get a full refund.
Message me before ordering happy to discuss your issue first.
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Get to know Birender Yadav
Full Stack Web Developer React, JavaScript and HTML CSS
- FromIndia
- Member sinceDec 2024
- Avg. response time3 hours
Languages
Hindi, English
FAQ
What do you need to get started?
Your code via GitHub link or zip file, a description of the bug, and error logs if available. The more detail you share, the faster I can fix it.
What if you cannot fix my bug?
You get a full refund. I will not keep your money if I cannot solve the issue.
Do you work with TypeScript?
Yes, I work with both JavaScript and TypeScript Node.js backends.
How do I know the bug is actually fixed?
I will explain exactly what caused the bug, show you the fix, and walk you through testing it before delivery
Can you fix bugs in a live production app?
Yes. I handle production bugs carefully and will always recommend testing the fix before deploying to live.

