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$
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I will fix bugs in your react, nextjs, or nodejs web application fast
Abdulghaffar
About this gig
Is your React, Next.js, or Node.js app broken? I'll find the bug and fix it fast.
I'm a full-stack developer specializing in the modern JavaScript/TypeScript ecosystem. I debug and fix issues in React, Next.js, Node.js, Express, and TypeScript applications daily.
WHAT I FIX:
React/Next.js rendering issues, hydration errors, and broken components
API route failures, 500 errors, and backend crashes in Node.js/Express
Authentication bugs (NextAuth, Supabase Auth, Firebase Auth)
Database connection issues (Supabase, PostgreSQL, MongoDB, Prisma)
Deployment errors on Vercel, Netlify, Railway, or AWS
TypeScript type errors and build failures
State management bugs (Redux, Zustand, Context API)
CSS/Tailwind layout issues and responsive design breaks
Third-party API integration problems (Stripe, OpenAI, etc.)
Performance issues, memory leaks, and slow page loads
MY PROCESS:
1. You share access to your code (GitHub, zip, or screen share)
2. I diagnose the root cause within hours
3. I fix the bug and test thoroughly
4. I deliver clean, documented code with an explanation of what went wrong
WHY HIRE ME:
CS student with hands-on experience building production apps
Tech stack: React, Next.
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 Abdulghaffar
Abdulghaffar
Web Developer and Designer
- FromPakistan
- Member sinceSep 2025
Languages
English, Urdu
Full-Stack Developer | React • Next.js • Node.js • TypeScript • Python
CS student building production web apps, AI tools, and SaaS products.
Stack:
→ React, Next.js, TypeScript, Tailwind CSS
→ Node.js, Express, Python, REST APIs
→ Supabase, PostgreSQL, MongoDB, Firebase
→ TensorFlow, Claude API, OpenAI API
→ Docker, Vercel, Railway, Git
Shipped:
- AI security tools (phishing detection, RAG systems)
- SaaS apps with auth, payments & dashboards
- Shopify theme customizations
Clean code. Fast delivery. Clear communication.
My Portfolio
FAQ
Can you fix bugs in WordPress/PHP/Python/other languages?
I specialize in the JavaScript/TypeScript ecosystem — React, Next.js, Node.js, Express, and related technologies. For other languages, I may still be able to help — message me first and I'll let you know.
How do I share my code with you?
The easiest way is to add me as a collaborator on your GitHub/GitLab repo. You can also send a zip file or we can do a screen share. I respect your code privacy and will never share it.
What if the bug is bigger than expected?
I always assess the bug before you order. If during the fix I discover additional issues, I'll let you know immediately and we can adjust the scope together. No surprise charges.
