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Fiverr Pro
English
$
USD
I will fix bugs and finish your nextjs or nodejs web app
Muneeb S
About this gig
Inherited a messy codebase? Developer went quiet? App breaking in production? I take over unfinished and unstable projects and get them working.
I'm a senior full-stack developer who specializes in jumping into existing code, figuring out what's actually wrong, and fixing it without breaking everything else. I've rescued half-built SaaS products and taken them all the way to launch.
I can help with:
- Debugging production errors and crashes
- Finishing features a previous developer left incomplete
- Fixing database and performance issues
- Cleaning up and stabilizing a shaky codebase
- Getting your app deployed and launch-ready
I work in Next.js, React, Node.js, TypeScript, and Python. Send me the repo or the error and I'll tell you what's going on and how I'd fix it before you commit to anything.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Muneeb S
Muneeb S
Senior Full Stack Engineer
- FromPakistan
- Member sinceFeb 2026
- Avg. response time1 hour
Languages
Urdu, English
Over the last 4+ years, I’ve engineered high-performance web applications, AI-driven solutions, and scalable cloud architectures for businesses worldwide. Whether it's FastAPI, Django, Node.js, or React, I ensure every project is built for speed, security, and seamless user experience.
My Portfolio
FAQ
I don't know exactly what's wrong. Can you still help?
Yes. Give me access and I'll diagnose it first, then tell you honestly what it needs and which package fits.
Will you break my existing features?
No. I work on a separate branch, follow your existing patterns, and test before handing off. Small, reviewable changes only.
What stack do you work with?
Next.js, React, Node.js (Express/Nest), TypeScript, and Python. Most modern JavaScript and Python web apps.
Can this turn into ongoing work?
Absolutely. Most of my takeover clients keep me on for continued fixes and new features.
How do we start?
Message me with your repo or the error before ordering, so I can confirm the scope and the right package.
