I will build or fix your react next js and node js web application


About this gig
Stop Losing Users to Broken Code
A "White Screen of Death" or failing API costs you revenue and reputation. Whether it's React crashing, Node.js throwing 500 errors, or MongoDB timeouts, I'll get your app back to 100% health fast.
I don't just patch symptoms; I solve the root cause. With 4+ years of professional experience, I deliver clean, production-ready fixes.
What I Solve:
- Frontend: React/Next.js hydration errors, useEffect loops, & UI glitches.
- State: Debugging Redux Toolkit, Zustand, & Context API.
- APIs: Broken Axios/TanStack Query caching & REST/GraphQL integration.
- Backend: Node.js runtime errors, Express middleware, & JWT Auth issues.
- Database: MongoDB/Mongoose schema validation & connection fixes.
- Deployment: Rescuing failed builds on Vercel, AWS, & VPS (PM2/Nginx).
️ Why Me?
- Speed: Most bugs squashed in 24 hours.
- Security: Your API keys and credentials stay 100% safe.
- Clean Code: Industry-standard fixes that won't break your app later.
- Support: 3 days of monitoring after the fix.
Stop the frustration. Send me your repo or logs, and let's get your app running smoothly!
️PLEASE MESSAGE ME BEFORE ORDERING to discuss your specific bug!
Get to know Yasin
Full Stack Web Developer, MERN, Next js Specialist
- FromBangladesh
- Member sinceFeb 2020
- Avg. response time8 hours
- Last delivery3 months
Languages
Bengali, English, Hindi
My Portfolio
Other Software Development Services I Offer
FAQ
Do I need to provide full GitHub access?
Yes, or a ZIP file of the source code. Rest assured, your code remains 100% confidential and is deleted from my local machine after the order is completed.
Can you fix bugs on a live production site?
I prefer to work on a staging/local branch first to ensure zero downtime for your users. Once fixed, I can help you push it to production.
What if you can't fix the bug?
I offer a 100% Money-Back Guarantee. If I can't find the solution, you don't pay a cent.
1 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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wltashik

Bangladesh
⭐⭐⭐⭐⭐ Yasin is an excellent frontend developer and a true professional. He understood my requirements clearly and delivered exactly what I was looking for. The UI was clean, responsive, and well-optimized, and his attention to detail really stood out. Communication was smooth throughout the project,...
Up to $50
Price
3 days
Duration
Y 
Seller's Response
Helpful?
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
W 
wltashik

Bangladesh
⭐⭐⭐⭐⭐ Yasin is an excellent frontend developer and a true professional. He understood my requirements clearly and delivered exactly what I was looking for. The UI was clean, responsive, and well-optimized, and his attention to detail really stood out. Communication was smooth throughout the project,...
Up to $50
Price
3 days
Duration
Y 
Seller's Response
Helpful?

