You will get any MERN & Next.js Bugs Quickly and Professionally
Project details
I specialize in quickly identifying and fixing issues in MERN and Next.js applications, ensuring your project runs smoothly, efficiently, and without errors.
With strong experience in MongoDB, Express, React, Node.js, and Next.js, I focus on debugging, performance optimization, and improving API and database efficiency. Whether you're facing frontend glitches, backend errors, or slow performance — I deliver clean, scalable solutions tailored to your needs.
🔧 What I can help you with:
Fix React / Next.js bugs & UI issues
Resolve Node.js / Express backend errors
Debug API integration & data fetching problems
Optimize MongoDB queries & performance
Fix authentication issues (JWT, NextAuth)
Improve app speed & scalability
⚡ Fast troubleshooting
🧠 Smart and efficient solutions
✅ Clean, maintainable code
💬 Clear communication & quick response
What sets me apart is my ability to quickly understand complex problems and deliver high-quality results under tight deadlines.
Let’s work together to make your MERN or Next.js application fast, stable, and reliable 🚀
With strong experience in MongoDB, Express, React, Node.js, and Next.js, I focus on debugging, performance optimization, and improving API and database efficiency. Whether you're facing frontend glitches, backend errors, or slow performance — I deliver clean, scalable solutions tailored to your needs.
🔧 What I can help you with:
Fix React / Next.js bugs & UI issues
Resolve Node.js / Express backend errors
Debug API integration & data fetching problems
Optimize MongoDB queries & performance
Fix authentication issues (JWT, NextAuth)
Improve app speed & scalability
⚡ Fast troubleshooting
🧠 Smart and efficient solutions
✅ Clean, maintainable code
💬 Clear communication & quick response
What sets me apart is my ability to quickly understand complex problems and deliver high-quality results under tight deadlines.
Let’s work together to make your MERN or Next.js application fast, stable, and reliable 🚀
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$15
|
Standard
$30
|
Advanced
$80
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 5 days |
Number of Revisions | 4 | 6 | Unlimited |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$10 - $15Frequently asked questions
About Khalid
MERN & Next.js Developer | Fast, Scalable Web Apps for Startups
Rajshahi, Bangladesh - 8:26 pm local time
With 3+ years of experience, I don’t just write code — I help solve real business problems through efficient and scalable technology solutions.
💡 What I Can Help You With:
✔️ Build scalable SaaS applications
✔️ Develop high-performance web apps (MERN / Next.js)
✔️ Fix slow, buggy, or poorly optimized websites
✔️ Create modern, responsive, and user-friendly UI/UX
✔️ API integration and system architecture design
⚡ Tech Stack:
✔️ Frontend: React.js, Tailwind CSS
✔️ Full-Stack: Next.js
✔️ Backend: Node.js, Express.js, Laravel, Django
✔️ Database: MongoDB, MySQL, PostgreSQL
✔️ CMS: WordPress
✔️ Mobile: Flutter
✔️ Desktop: Electron
📈 Experience & Expertise:
I have built and worked on:
✅ SaaS platforms
✅ Management systems
✅ eCommerce applications
✅ Admin dashboards
✅ Authentication systems with role-based access
I focus on:
👉 Performance optimization
👉 Clean and maintainable architecture
👉 Scalable and future-proof solutions
🤝 Let’s Work Together
If you’re a startup or business looking to build or improve your web application, I’d be happy to help.
📩 Feel free to reach out — I can share quick insights and suggestions for your project.
Steps for completing your project
After purchasing the project, send requirements so Khalid can start the project.
Delivery time starts when Khalid receives requirements from you.
Khalid works on your project following the steps below.
Revisions may occur after the delivery date.
Access the Project
I will review the project by accessing the provided credentials (GitHub repo, cPanel, or hosting).
Identify Issues
I'll analyze the code, review error logs, and test the problematic endpoints to identify the root cause.