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English
$
USD
I will fix mern stack bugs and resolve react node js errors today
Sumair Memon
About this gig
Is a stubborn bug breaking your MERN stack application? Don't let technical debt or broken code slow down your business.
I am a professional Full-Stack Developer specializing in the MongoDB, Express, React, and Node.js (MERN) ecosystem. Whether its a minor CSS alignment issue or a critical backend logic failure, I provide clean, efficient, and permanent fixes.
What I Can Fix for You:
- Frontend (React): State management errors (Redux/Context API), Hook issues, and UI/UX responsiveness.
- Backend (Node & Express): API endpoint failures, Middleware glitches, and Server-side logic errors.
- Database (MongoDB): Schema validation issues, connection leaks, and CRUD operation failures.
- Authentication: JWT, Firebase, or OAuth login/signup issues.
- Deployment: Fixes for Render, Vercel, Heroku, or AWS hosting errors.
Why Hire Me?
- Root-Cause Resolution: I don't just "hide" the bug; I fix the source code so it doesn't return.
- Clean Code: I follow industry best practices to ensure your code remains scalable.
- Fast Communication: I provide regular updates and a screen-recorded explanation of the fix.
- Post-Fix Support: I offer a 3-day window for any follow-up questions regarding the fix.
How it Works:
- Me
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 Sumair Memon
Sumair Memon
Transforming Businesses with AI Integrated Websites
- FromPakistan
- Member sinceJan 2023
- Avg. response time1 hour
Languages
English
Hi, I’m Sumair, a Software Engineer specializing in AI-integrated websites and RAG (Retrieval-Augmented Generation) systems.
I help businesses turn static data into intelligent, conversational experiences using Next.js (App Router), the MERN stack, and modern AI tools like LangChain & Gemini.
With hands-on experience at MarkhorSystem, I build scalable, production-ready solutions that follow industry best practices, clean code, high performance, and future-proof architecture.
My Portfolio
FAQ
What info do I need to provide to get started?
To fix the bug quickly, I’ll need a brief description of the issue, screenshots or a screen recording (Loom) of the error, and access to your GitHub repository or source code files. If it’s a database issue, I may also need temporary access to your MongoDB cluster.
Can you fix the bug without me sharing my full source code?
n most cases, I need to see the environment where the bug lives to fix it properly. However, for specific logic or UI issues, we can hop on a screen-sharing session, or you can send me the specific code snippets involved.
Do you offer custom offers for large projects?
Absolutely! If your project has multiple bugs or requires a full-scale refactor/feature addition, please message me. I can create a custom quote tailored specifically to your project’s needs and timeline.
Will you explain the fix to me?
Yes! I believe in long-term solutions. Along with the fixed code, I will provide a brief explanation of why the bug occurred and how I resolved it so you can avoid similar issues in the future.
What if the bug returns after the order is completed?
I offer a 3-day post-delivery support period. If the specific bug I fixed reappears within that window, I will jump back in and resolve it at no extra cost to you.
