I will fix your python fastapi backend bugs with tests
About this gig
Bugs that come back are the expensive kind. Every fix I deliver comes with an automated test, so the same bug can't quietly return.
I fix bugs and add small features in Python backends: FastAPI, Flask, Django or plain Python. Typical work: broken endpoints, failing background jobs, database query errors, authentication issues, slow requests, and third-party API integrations (payments, email, CRM, AI providers).
How I work:
- I reproduce the problem first and write a failing test.
- - I fix it, the test passes, and I explain the cause in plain words.
- - I work on a branch in your repository, so you review every change before it's merged.
My own product runs on FastAPI with 360 automated tests, so this is how I build everything.
Before ordering, message me with what's wrong, how to see it happen, and how you run the app (local, Docker or cloud). I'll confirm it fits a package or send a custom offer.
Get to know Loordhu J.
AI agents, RAG and n8n automation engineer
- FromIndia
- Member sinceJun 2021
- Avg. response time1 hour
Languages
Tamil, English
Other Software Development Services I Offer
FAQ
Do you need my production passwords?
No. I work on a copy or a test setup with test data. Anything secret stays with you.
What if the bug is bigger than expected?
I tell you before doing any extra work, with a clear new quote. Nothing is added to your bill without your yes.
Do you only work with FastAPI?
No. I also fix Flask, Django and plain Python code. Message me with your stack if you're not sure.

