You will get React, Next.js, Node.js & MERN Stack Bugs Fixed
Project details
Are you looking for a reliable developer to fix bugs in your React.js, Next.js, Node.js, or MERN Stack application?
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You're in the right place.
I specialize in identifying the root cause of frontend and backend issues and delivering clean, production-ready solutions. Whether you're facing React rendering problems, Next.js build errors, API failures, authentication issues, database bugs, responsive design problems, or performance bottlenecks, I'll resolve them efficiently without affecting your existing functionality.
My bug-fixing services include:
✔ React.js & Next.js bug fixes
✔ Node.js & Express.js backend debugging
✔ MongoDB database issues
✔ REST API integration & error fixes
✔ Authentication (JWT/Login) fixes
✔ Performance optimization
✔ Responsive layout fixes
✔ Code refactoring & optimization
Why choose me?
• Clean and maintainable code
• Fast communication and quick turnaround
• Thorough testing before delivery
• Secure and scalable solutions
• 100% focus on quality and client satisfaction
Let's get your application running smoothly again!
\
You're in the right place.
I specialize in identifying the root cause of frontend and backend issues and delivering clean, production-ready solutions. Whether you're facing React rendering problems, Next.js build errors, API failures, authentication issues, database bugs, responsive design problems, or performance bottlenecks, I'll resolve them efficiently without affecting your existing functionality.
My bug-fixing services include:
✔ React.js & Next.js bug fixes
✔ Node.js & Express.js backend debugging
✔ MongoDB database issues
✔ REST API integration & error fixes
✔ Authentication (JWT/Login) fixes
✔ Performance optimization
✔ Responsive layout fixes
✔ Code refactoring & optimization
Why choose me?
• Clean and maintainable code
• Fast communication and quick turnaround
• Thorough testing before delivery
• Secure and scalable solutions
• 100% focus on quality and client satisfaction
Let's get your application running smoothly again!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$20
|
Standard
$50
|
Advanced
$100
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 4 days |
Number of Revisions | 1 | 2 | 4 |
Bug Investigation | - | - | - |
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Frequently asked questions
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AS
Asma S.
Jul 23, 2026
MERN Stack Developer Needed to Fix Bugs in Existing Web Application
Abdul did an excellent job fixing the bugs in our MERN Stack application. He quickly identified the issues, communicated clearly throughout the project, and delivered the work on time. Everything was completed professionally, and the application is now working as expected. I highly recommend Abdul and would be happy to work with him again.
About Abdul
Full Stack MERN Developer | React, Next.js, Node.js | SaaS | E-Commerc
Derby, United Kingdom - 5:11 am local time
You're in the right place.
I'm a Full Stack MERN Developer with 5+ years of experience building responsive, high-performance web applications using React.js, Next.js, Node.js, Express.js, MongoDB, and Tailwind CSS. I help startups, agencies, and businesses turn ideas into secure, scalable, and user-friendly products.
Here's what I can help you with:
✅ React.js & Next.js Development
✅ Full Stack MERN Applications
✅ Custom Web Applications
✅ REST API Development & Integration
✅ Authentication (JWT, OAuth, Firebase, Supabase)
✅ Admin Dashboards & CMS
✅ AI Integration (OpenAI & Claude APIs)
✅ Payment Integration (Stripe)
✅ Bug Fixing & Performance Optimization
✅ Responsive & Pixel-Perfect UI Development
Why clients choose me:
✔ Clean, scalable, and maintainable code
✔ Fast communication and daily updates
✔ On-time delivery with attention to detail
✔ SEO-friendly and optimized applications
✔ Long-term support after project completion
Technologies I work with:
Frontend
React.js
Next.js
JavaScript (ES6+)
TypeScript
Tailwind CSS
Redux Toolkit
Backend
Node.js
Express.js
MongoDB
REST APIs
Tools
Git & GitHub
Vercel
Netlify
Postman
Firebase
Supabase
Whether you need a complete MERN application, a modern React/Next.js frontend, API integration, or help fixing existing issues, I'm here to deliver reliable, production-ready solutions.
Let's discuss your project and build something great togeth
Steps for completing your project
After purchasing the project, send requirements so Abdul can start the project.
Delivery time starts when Abdul receives requirements from you.
Abdul works on your project following the steps below.
Revisions may occur after the delivery date.
Review the project and identify the root cause
I will analyze your source code, reproduce the issue, review error logs, and identify the root cause before making any changes.
Fix bugs and optimize the application
I will resolve frontend or backend issues, fix APIs, authentication, database, or performance problems while keeping the code clean and maintainable.