I will fix bugs and issues in your nodejs, express, or mongodb app


About this gig
Is your Node.js, Express, or MongoDB app throwing errors, crashing, or just not behaving the way it should? I'll find the root cause and fix it not just patch the symptom.
I'm a backend developer specializing in Node.js/Express/MongoDB, with experience on production systems including VBooking, one of the Middle East's larger AI travel platforms where I worked on a 4-year-old codebase handling live bookings, transactions, and supplier integrations. I know how to work inside existing code without breaking what already works.
What I can fix:
- API errors and unexpected crashes
- Database query issues / MongoDB connection problems
- Authentication & middleware bugs
- Broken integrations (Stripe, third-party APIs, etc.)
- Performance bottlenecks and slow endpoints
- Logic errors causing wrong data or behavior
Send me the error, the repo, or just a description of what's going wrong I'll diagnose it clearly before touching any code, so you know exactly what's happening and how it'll be fixed.
Get to know Jmydev
Full stack developer
- FromEgypt
- Member sinceJan 2020
- Avg. response time1 hour
Languages
English, Arabic
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FAQ
Do I need to share my full codebase?
Only the relevant part. I'll tell you exactly what I need after you describe the issue.
What if the bug takes longer than expected to find?
I'll always communicate before exceeding scope; no surprise charges.
Can you work with my existing hosting/deployment setup?
Yes, I work within your current environment unless we agree otherwise.
Do you fix front-end bugs too?
My focus is backend but I can flag front-end issues but won't fix them unless agreed separately.
What if it's not actually a bug but missing functionality?
I'll let you know and we can scope it as a small feature add instead.
