Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix bugs in your node js, express or react application fast
Muhammad Naseem
_zk5xxp.jpg)
_hnuipq.jpg)
About this gig
Is your Node.js, Express or React app broken and you cannot figure out why? I will find and fix it fast.
With 2.5 years of real production debugging across multiple live platforms, I do not just fix the symptom. I find the root cause and explain it to you in plain English.
BUGS I FIX:
- Node.js and Express crashes and 500 errors
- React rendering, state management and hook problems
- JWT and session authentication bugs
- PostgreSQL, MongoDB and MySQL query errors
- CORS errors blocking your frontend
- Async and Promise chain errors
- Memory leaks and performance issues
- Docker container startup problems
EVERY ORDER INCLUDES:
- Working fix tested in your environment
- Written explanation of what was wrong
- Prevention tips so it does not happen again
WHAT I NEED FROM YOU:
- Error message or screenshot
- Relevant code (GitHub link works great)
- What you expected vs what is actually happening
Message me with your issue. Free diagnosis within 1 hour. No fix, no charge.
Get to know Muhammad Naseem
Muhammad Naseem
Full Stack Developer at Infoetec Node js React PostgreSQL and Redis Expert
- FromPakistan
- Member sinceFeb 2024
- Avg. response time1 hour
Languages
Urdu, English, Hindi
Full Stack Developer with 2.5 years building production backends for international clients.
At Info e Tec (Finland), I reduced page load time by 55% using Redis caching and cut API latency by 25% on a live travel booking platform.
I deliver:
✅ REST APIs: Node.js, Express, PostgreSQL
✅ Redis caching and BullMQ queues
✅ React frontends with clean UI
✅ Third-party API integrations
✅ Docker deployment
I write real code, not tutorials. Message me and I will respond within 1 hour.
My Portfolio
Other Software Development Services I Offer
FAQ
What types of bugs do you fix?
Node.js crashes, Express 500 errors, React state/hook bugs, JWT auth issues, PostgreSQL/MongoDB query errors, CORS errors, async/Promise failures, memory leaks, Docker startup errors.
How quickly can you fix my bug?
Basic package delivers within 24 hours. Most single bugs are fixed within a few hours of receiving the code. I always deliver before the deadline — being early is a standard I hold on every order.
What do you need from me to start?
Three things: (1) the exact error message or screenshot, (2) relevant code or GitHub link, (3) what you expected vs what actually happened. The more specific, the faster the fix.
What if the bug takes longer than expected?
Price is fixed — I never charge more if debugging takes longer. If the issue is larger than described, I'll deliver a diagnosis and suggest a transparent quote for the full fix before continuing.
Do you guarantee the bug won't come back?
I fix the root cause, not the symptom. If the same bug recurs from the same fix within 7 days, I'll reinvestigate free. Prevention tips are included with every order.
I have multiple bugs — which package?
1 bug: Basic ($40). 2–3 bugs: Standard ($80) includes code review. Many bugs across a codebase: Premium ($150) — unlimited bugs, full code review, written debugging report.
Will you need access to my server?
Usually no — most bugs are fixed by reviewing code locally. I'll never ask for production passwords or payment info. If environment access is needed, I'll explain exactly why first.
What does the written explanation look like?
You get: what the bug was, why it happened, what I changed to fix it, and a prevention tip. Clear plain English — not just a code diff. Every order includes this regardless of package.
Can you fix bugs in frameworks not listed?
Primary expertise: Node.js, Express, NestJS, React, TypeScript, Prisma, Sequelize, Socket.IO. Message me with your framework — I'll check and give an honest answer within 30 minutes.
What if you cannot fix the bug?
I'll request a mutual cancellation for a full refund and provide a written summary of everything I investigated, what I tried, and my best diagnosis. You never leave empty-handed.
