I will fix bugs in your react firebase or node js web app


About this gig
Your app works in the demo and breaks in production. That is the bug I am good at.
I fix React, Firebase and Node.js apps that run without crashing but do the wrong thing: rate limits that open under load, database writes lost to contention, security rules that let the client write server fields, assets returning 200 instead of 404.
I built and shipped a full social video platform on my own - React/TypeScript, Firestore, Cloud Functions, a Cloudflare R2 and HLS video pipeline, around 1,200 tests. Along the way I found five separate rate limits in my own system that all passed review and all opened under load: a cap of 30 was letting 60 of 60 requests through. I rewrote them and every cap held.
WHAT YOU GET
- The bug fixed, on a branch you can review before merging
- The root cause explained in plain language
- A before and after number from the same test, so you can verify it yourself
HOW TO START
Message me first with your repo or the file that worries you. I will tell you what I think is wrong before you order. If it is not something I can fix, I will say so.
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Get to know Recep Asik
React and Firebase Developer, Production Bug Fixing and Code Rescue
- FromTurkey
- Member sinceDec 2022
- Avg. response time1 hour
Languages
Turkish, English
FAQ
What do you need from me to start?
Access to the repo or the relevant files, the steps to reproduce the problem, and one sentence on what you expected to happen instead.
What if you cannot fix it?
I will tell you before you order. If I discover mid-order that it is outside what I can do, I cancel and you get a full refund. I would rather lose an order than leave you with a broken app.
Do you work with AI generated code?
Yes, that is most of what I fix. Code written fast with AI tools usually runs fine in a demo and fails under real users. Finding that gap is exactly what I am good at.
Will your fix break something else?
Every change goes on a separate branch with the test that proves it works, so you can review it before merging. I do not push directly to your main branch.

