Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix bugs and errors in your react or node js app
Ali Haider Awan
About this gig
Is your React, Node.js or MongoDB app throwing errors you cannot figure out?
I will find and fix bugs, errors and broken functionality in your web application quickly and cleanly with a full explanation of what was wrong and how I fixed it.
What I can fix: React component errors and crashes , Node.js and Express server errors, MongoDB connection and query issues, REST API not working correctly, Authentication and login problems, Deployment errors on Vercel or Netlify, CSS and layout breaking issues , Performance and slow loading problems
Why choose me:
Full stack MERN developer
I understand your entire codebase, I don't just fix the symptom I fix the root cause
Clean fix with clear explanation every time
Fast delivery
most fixes done within 24 hours
How it works: Share your code or repository, describe the bug, and I will get straight to work.
Message me before ordering so I can confirm I can fix your specific issue before you spend a penny.
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 Ali Haider Awan
Ali Haider Awan
I build custom AI solutions and fix complex web application bugs
- FromPakistan
- Member sinceJul 2022
- Avg. response time1 hour
Languages
Urdu, English
Hi! I am a dedicated Computer Scientist and Full-Stack Developer with a passion for building and fixing complex systems. I specialize in two core areas:
🧠 AI & Custom LLMs: I build secure, custom RAG chatbots (Python, LangChain, vector databases) that let you interact with your private documents with zero AI hallucinations.
💻 Web App Bug Fixing: I quickly diagnose and resolve deep-rooted errors in React, Node.js, and MongoDB (MERN) applications.
I don't just patch symptoms; I fix root causes with clean, documented code. Let's build or fix your next project!
My Portfolio
FAQ
What do you need from me to get started?
Share your code via GitHub, zip file or paste it directly. Describe the bug — what is happening and what should be happening instead. The more detail you give the faster I can fix it.
Can you fix any JavaScript framework?
I specialize in React, Node.js, Express and MongoDB. I can also fix plain JavaScript, HTML and CSS issues.
What if you cannot fix my bug?
I will tell you honestly before you order if I am not confident I can fix it. That is why I ask you to message me first. If for any reason I cannot fix it after starting, I will refund you fully.
Do you fix bugs in existing projects or only ones you built?
I fix bugs in any codebase — whether you built it, another developer built it, or it came from a template. Just share the code and describe the issue.
How do you deliver the fix?
I deliver the corrected code files with a written explanation of exactly what was wrong and what I changed. You always know what was fixed and why.
Can you fix deployment errors on Vercel or Netlify?
Yes, deployment and environment errors are some of the most common issues I fix. Share your error logs and I will sort it out.
What if the same bug comes back after delivery?
I offer free re-fix within 7 days of delivery if the same bug reappears. Your satisfaction is guaranteed.
