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I will fix bugs and errors in your react node js and mern project
Muhammad Haider
About this gig
Got a broken React, Node, or MERN app? Let's fix it fast.
I'm a senior full-stack engineer with 4+ years debugging production codebases. I specialize in rescue work reading unfamiliar code, finding what's broken, and fixing it. Send me the error and the repo.
I fix:
- React / Next.js front-end bugs & UI issues
- Node.js / Express / API errors
- MongoDB & database problems
- Broken builds, crashes & console errors
- Failing integrations (Stripe, Firebase, APIs)
Why work with me:
- I find the root cause, not just patch the symptom
- I tell you what caused it so it doesn't come back
- Fast turnaround most bugs fixed within a day
- Clear communication, no guesswork
How it works:
- Message me the error + a description first
- I confirm I can fix it & send a custom offer if needed
- You get a working app + an explanation of the fix
Note: A "bug" = one specific issue. Adding new features is separate message me and I'll scope it.
Send me the error and let's get it fixed!
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Get to know Muhammad Haider
Muhammad Haider
Senior MERN Engineer, Nextjs, React Native, AI Powered Apps
- FromPakistan
- Member sinceOct 2023
- Avg. response time1 hour
Languages
Urdu, English
Senior full-stack engineer specializing in MERN, Next.js, and React Native. I currently lead development of an AI-powered cybersecurity SaaS that unifies alerts from enterprise security tools and uses AI to investigate them automatically, turning hours of analyst work into minutes.
What I do best: building production SaaS apps end to end, integrating AI/LLM features that actually work, and rescuing broken or half-finished React and Node projects.
Clean code, clear communication, and honest timelines. If your app needs to be built, fixed, or made smarter, let's talk.
My Portfolio
FAQ
What do you need to start?
Access to the code/repo, the error message or a description, and steps to reproduce the bug.
What if it's more than one bug?
Pick the right package or add the "Additional bug" extra. Message me first and I'll tell you exactly what fits.
Can you fix a bug another developer caused?
Yes — that's most of my work. I read unfamiliar codebases and fix them.
Will you explain the fix?
Yes. I tell you the root cause so it doesn't happen again.
Can you also add a feature?
Small features via the extra; larger work as a custom offer.
