I will fix bugs and errors in your react or nextjs website or web app


About this gig
Is your React or Next.js app throwing errors, failing to build, or behaving strangely in production? I'll find the root cause and fix it properly, not just patch the symptom.
I'm a full-stack TypeScript developer working daily with Next.js, React, Node.js, and the infrastructure underneath them.
Common issues I fix:
- Hydration errors and server/client mismatches
- Build and deployment failures on Vercel, Docker, or a VPS
- API routes, fetch, CORS, and authentication problems
- Prisma, PostgreSQL, and MySQL query or connection errors
- Broken layouts and responsive CSS or Tailwind issues
- Stripe checkout and webhook bugs
- Slow pages and unnecessary re-renders
What you get:
- A working fix, tested before delivery
- A short note explaining what was wrong and what I changed
- Code that matches your existing style and structure
I also add small features, like a new form, an API endpoint, or a component.
Please message me first with the error, screenshots, and how to reproduce it. I'll confirm the scope and whether one package covers it before you order. All communication happens here in Fiverr chat.
Get to know Rezaharirchian
Full Stack Developer for NextJS, React, Python and NodeJS
- FromUnited Kingdom
- Member sinceFeb 2025
Languages
English, Persian
My Portfolio
Other Software Development Services I Offer
FAQ
What if I don't know what's causing the bug?
That's normal. Send me the error message, screenshots, and steps to reproduce it. I'll diagnose it and confirm the scope before you order.
How do I share my code?
Invite me to a private GitHub or GitLab repository, or send a zip file in Fiverr chat. Never send me your passwords. For hosting access, create a temporary limited account.
What if the bug turns out bigger than expected?
I'll explain what I found and offer the right package or a custom offer before doing extra work. No surprises.
Do you work on apps built with AI tools (Cursor, Bolt, Lovable, v0)?
Yes, as long as the stack is React, Next.js, or Node.js.
Do you do screen-share calls?
No. I work through Fiverr chat and your repository, which keeps everything documented.

