I will diagnose and fix your python or fastapi backend bug


About this gig
Is your Python or FastAPI backend returning a 500 error, failing validation, or producing the wrong API response? I can diagnose one clear, reproducible issue in an existing codebase and deliver a focused fix you can verify.
I can help with:
- FastAPI endpoint and Pydantic validation errors
- Python imports, async/await, dependencies, and exception handling
- JSON, CSV, and API data-flow bugs
- One bounded issue in an existing RAG or AI agent workflow
Depending on the package, you will receive a root-cause explanation, minimal code patch, focused tests or validation commands, and concise run instructions.
Before ordering, please send a sanitized minimal example, exact error or output, expected result, reproduction steps, Python/framework versions, and deadline. Never send passwords, API keys, tokens, private customer data, or production credentials.
Not included: production deployment, architecture rewrites, multiple unrelated bugs, CAPTCHA or access-control bypass, full product builds, fine-tuning, or guaranteed model accuracy. Delivery time starts after complete sanitized materials and scope are confirmed.
Get to know Jarvis
AI Backend Engineer Python FastAPI RAG AWS
- FromChina
- Member sinceJan 2024
- Avg. response time1 hour
Languages
English
My Portfolio
FAQ
What do you need before starting?
A sanitized minimal example, reproduction steps, complete error or traceback, actual and expected results, Python or framework versions, and acceptance criteria. Please do not send secrets.
What counts as one bug?
One reproducible failure path with one expected outcome. Unrelated errors require separate scope.
Can you fix RAG or AI agent projects?
Yes, for one bounded issue in an existing workflow. This Gig does not include a full build or an accuracy guarantee.

