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Fiverr Pro
English
$
USD
I will debug fix bugs in react nextjs nodejs express or mongodb
Abdul Malek
About this gig
Is your web application acting up with bugs, crashes, or broken features? I diagnose and resolve issues in React, Next.js, Node.js, Express.js, MongoDB, and MERN stack projects fast, clean, and reliable fixes.
I Can Help With:
- React component and JavaScript bugs
- Next.js routing, rendering, and build failures
- Node.js and Express backend troubles
- REST API errors
- MongoDB & Mongoose issues
- Authentication and JWT glitches
- CORS and environment variable misconfigurations
- Responsive UI breakages
- Vercel deployment and build failures
- Frontend-backend integration gaps
I always dig into the root cause rather than patching symptoms, delivering clean, maintainable solutions you can build on.
Have a complex case? Message me before ordering so I can review the requirements and recommend the right package for your needs.
Lets get your application running smoothly again!
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 Abdul Malek
Abdul Malek
MERN Stack Developer
- FromBangladesh
- Member sinceSep 2026
- Avg. response time1 hour
Languages
Bengali, English, German, Spanish
I am a Full Stack Web Developer from Bangladesh specializing in the MERN stack, including React, Next.js, Node.js, Express.js, and MongoDB. I focus on building fast, responsive, and user-friendly web applications with hands-on experience in frontend, backend, and REST API development.
My Portfolio
FAQ
Can you help me with my current project?
Sure. I can debug a project already built with React, Next.js, Node.js, Express.js, MongoDB.
Do you fix Vercel deployment errors?
Yes. I can solve common build issues, environment variable issues, routing issues, and deployment issues.
Do I have to contact you before ordering?
Yes, especially for complicated bugs. First, send me the error details so that I can confirm the scope.
Can you fix API and auth problems?
Yeah. I am capable of dealing with REST APIs, JWT authentication, middleware, CORS, and frontend/backend integration issues.
