Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix or build modern mern stack website as senior react node full stack developer
Muhammad Kashif
1 order in queue
5.0
5.0
About this gig
Looking for a skilled MERN Stack Developer? You are in the right place
I am a Professional MERN Stack Web Developer built to design, debug, and optimize scalable web applications. I specialize in React.js, Node.js, Express.js, MongoDB, and full MERN ecosystem, delivering clean code and fast bug fixing.
Whether you want to build an app from scratch or need urgent help to fix bugs and errors, I am here.
Services I Offer:
- Custom Web Application Development from scratch (Full MERN Stack)
- Fix React.js Bugs & State Management Errors (Hooks, Redux)
- Debug Node.js, Express, & MongoDB Backend Issues
- Frontend UI/UX and Tailwind/CSS Responsive Fixes
- Secure REST API Development & API Integration
- Fully Responsive MERN Stack Websites
My Process:
1. Analysis: Diagnosing root cause of bugs or project goals.
2. UI/UX: Crafting layouts or fixing styling issues.
3. Code: Building MERN apps or fixing logical errors.
4. Deploy: Launching your project on secure environments.
Why Choose Me?
- Professional Communication
- Fast Turnaround (Urgent Bug Fixing within hours)
- 100% Client Satisfaction Guaranteed
Contact me with details or error screenshots. Let us build or fix your app
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 Muhammad Kashif
Muhammad Kashif
MERN Stack, React Developer, Data Science, AI and ML, Vendor Data Conversion
- FromPakistan
- Member sinceAug 2024
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Urdu, German, Spanish, French
MERN Stack & React Developer | AI, ML & Data Science Expert
I build scalable web apps using MongoDB, Express.js, React.js, Node.js & Next.js. I also provide AI, Machine Learning, Data Science & Vendor File/CSV Conversion (Shopify, WooCommerce, Matrixify) using Python & Pandas.
MERN Stack Development
React & Next.js Development
Figma to UI Conversion
REST API Integration
AI & Machine Learning Solutions
Data Science & Data Analysis
Vendor File / CSV Conversion
Bug Fixing & Performance Optimization
📩 Let's discuss your project and bring your ideas to life with clean, scalable solutions.
My Portfolio
FAQ
What do you need from me to start fixing the bugs?
To fix your MERN stack bugs, I need your project files via GitHub repo or ZIP file, a clear description of the issue, and steps to reproduce the bug. If your React or Node.js application is live, sharing the URL helps me diagnose the problem faster.
Can you fix both frontend and backend issues?
Yes! I handle the complete MERN stack — React.js frontend bugs, Node.js and Express backend errors, MongoDB database issues, and broken REST API endpoints. No matter where the bug is hiding, I will find and fix it.
Do you fix urgent or critical bugs?
Yes, most MERN stack bug fixes are delivered within 24 hours. For urgent React or Node.js issues that are breaking your live website, message me first and I will prioritize your project immediately.
What types of React bugs do you fix?
I fix React white screen errors, component not rendering, useState and useEffect hook issues, props drilling problems, API call failures, routing errors with React Router, and Redux state management bugs.
Can you fix Node.js and MongoDB errors?
Absolutely. I fix Node.js Express route errors, middleware issues, JWT authentication bugs, CORS errors, MongoDB connection failures, Mongoose schema problems, and slow or broken database queries.
Do you work on incomplete or messy MERN projects?
Yes, I specialize in fixing and completing existing MERN stack projects. Even if your codebase is unfinished or messy, I will clean it up, fix the bugs, and deliver working code
Do you offer code review or improvement suggestions?
Yes. Along with bug fixing, I review your full MERN stack code and suggest improvements for performance, security, and clean code structure — at no extra charge.
What if I am not satisfied with the fix?
Your satisfaction is my priority. I offer free revisions until your MERN stack application is fully working as expected. If the issue persists, we will work out a fair solution together.
Reviews
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
S 
smith3131
United Kingdom
Great experience! An amazing full-stack developer. Built custom backend APIs for my MERN stack project, handled the Node.js fixes, and delivered everything well ahead of schedule. Everything works perfectly on my React website. Super fast, highly accommodating, and knows how to build things from scratch. Highly recommended!
Up to $50
Price
6 days
Duration
Helpful?C 
cedric_coleman
United States
Exceptional work! He successfully fixed the frontend React.js and API integration issues on my MERN stack website. Very knowledgeable developer, solved the problem quickly, and delivered the project right on time with professional communication. Highly recommended for full-stack and React bug fixing!
Up to $50
Price
3 days
Duration
Helpful?W willardadk
United States
Super fast delivery, fixed all my React/Node bugs perfectly — highly recommended!
Up to $50
Price
1 day
Duration
Helpful?
Reviews
3 reviews for this Gig
| (3) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
S smith3131
United Kingdom
Great experience! An amazing full-stack developer. Built custom backend APIs for my MERN stack project, handled the Node.js fixes, and delivered everything well ahead of schedule. Everything works perfectly on my React website. Super fast, highly accommodating, and knows how to build things from scratch. Highly recommended!
Up to $50
Price
6 days
Duration
Helpful?C cedric_coleman
United States
Exceptional work! He successfully fixed the frontend React.js and API integration issues on my MERN stack website. Very knowledgeable developer, solved the problem quickly, and delivered the project right on time with professional communication. Highly recommended for full-stack and React bug fixing!
Up to $50
Price
3 days
Duration
Helpful?W willardadk
United States
Super fast delivery, fixed all my React/Node bugs perfectly — highly recommended!
Up to $50
Price
1 day
Duration
Helpful?
