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Fiverr Pro
English
$
USD
I will fix bugs and debug your react nextjs node or python web app
Rustam Khan
About this gig
Is your React, Next.js, Node or Python app throwing errors, crashing, or behaving in ways that make no sense? I fix it.
I am a full-stack developer who has shipped real production systems: dashboards, APIs, auth flows, payment integrations and real-time features. I know how modern web apps break and how to trace a bug to its real root cause instead of patching symptoms.
What I fix for you:
React and Next.js errors, hydration issues, broken state and rendering bugs.
Node.js, Express and NestJS API and server crashes.
Python, FastAPI and Flask backend and logic errors.
Database, auth, CORS, deployment and build failures.
"It works on my machine" environment problems.
How I work:
You send me the bug, the repo and how to reproduce it. I find the real root cause and fix it cleanly. I test it, confirm it works, and explain what was wrong.
Clear communication, clean code, and I do not disappear halfway. Please message me before ordering so I can confirm the scope and give you an honest timeline.
Get to know Rustam Khan
Rustam Khan
Full Stack Developer for Payments Web Apps and AI
- FromIndia
- Member sinceSep 2025
- Avg. response time1 hour
Languages
Hindi, English
I build web applications end to end - React and Next.js on the front, Python/FastAPI or Node/NestJS behind, PostgreSQL underneath, deployed on real servers. Over 4+ years I've shipped 25 production systems, including a live mobile-money platform and a P2P crypto marketplace with database-enforced escrow and 100% test coverage on every money path. I scope before I code, write tests on anything that touches money, and don't disappear after handover. Open to full-stack builds, payment integrations, dashboards, APIs, AI features, and rescuing half-finished codebases.
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FAQ
How do we get started?
Message me first with a short description of the bug, access to your repo, and steps to reproduce it. I will confirm the scope, price and delivery time before you place the order.
Do you need access to my code?
Yes. A GitHub, GitLab or Bitbucket repo works best, or a zip of the project. The more context you share (error messages, screenshots, logs), the faster I can find and fix the issue.
What if the bug cannot be fixed?
I review the issue up front before you order, so I only take on work I am confident I can fix. In the rare case something is out of scope, I will tell you honestly rather than waste your time or money.
