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I will fix bugs and optimize your react or nextjs web app
Abhishek Kumar
About this gig
Are you stuck with a bug in your React, Next.js, or Node.js application?
Whether it's a UI issue, API error, performance problem, or unexpected behavior I will identify the root cause and fix it efficiently.
I am a Full Stack Developer with real-world experience building and debugging production-level web applications. I have worked on complex projects including AI SaaS platforms and real-time applications.
Here's what I can fix for you:
React / Next.js issues (hooks, rendering, routing, hydration errors)
Backend bugs (Node.js, APIs, database issues)
Performance issues and slow loading
Authentication problems (JWT, sessions, OAuth)
API integration errors
Deployment and production bugs
Why choose me?
Clean and scalable fixes (not temporary solutions)
Proper debugging and root cause analysis
Optimized and maintainable code
Clear communication and fast delivery
Tech Stack:
React, Next.js, Node.js, Express.js, MongoDB, TypeScript
Important:
Please contact me before placing an order to discuss your issue and get the best solution.
Lets fix your bug and get your app running smoothly
Get to know Abhishek Kumar
Abhishek Kumar
Full Stack Web Developer
- FromIndia
- Member sinceMar 2026
- Avg. response time1 hour
Languages
Hindi, English
Hi, I’m Abhishek Kumar, a Full Stack Developer focused on MERN Stack and Next.js. I build fast, scalable, and modern web applications that are clean, secure, and production-ready. I’ve worked on SaaS platforms, e-commerce apps, and real-time systems. Portfolio: https://dev-portfolio-sooty-rho.vercel.app. I can help with full stack development, business websites, REST APIs, and bug fixing. I deliver reliable, high-quality work with clear communication and on-time delivery. Let’s build something great together.
My Portfolio
Other Software Development Services I Offer
FAQ
Q1: What do you need to start fixing the bug?
A: I need access to your code (GitHub/zip), a clear description of the issue, and any error logs or screenshots if available.
Q2: What types of bugs can you fix?
A: I can fix frontend, backend, API, performance, authentication, and deployment-related issues in React, Next.js, and Node.js apps.
Q3: Do you fix urgent or critical issues?
A: Yes, I offer priority bug fixing with faster delivery. Please contact me before placing an order for urgent issues.
Q4: Will the fix be permanent or temporary?
A: I focus on root cause analysis and provide clean, scalable solutions — not temporary fixes.
Q5: Will you optimize my app performance as well?
A: Yes, I can optimize performance, improve loading speed, and fix bottlenecks if needed (included in higher packages).
Q6: Do you work on existing projects?
A: Yes, I can debug, fix, and improve existing applications, even if the code was written by another developer.
Q7: Do you provide support after delivery?
A: Yes, I provide support and revisions based on the selected package to ensure everything works smoothly.
