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I will debug and deploy fastapi python backends
Jose Robles
About this gig
Need an experienced Python backend engineer to debug your FastAPI application or take it to production?
I build fast, type-safe, production-ready APIs and help teams find the root cause of backend issues.
I fix Pydantic v1/v2 validation, async SQLAlchemy and asyncpg connection issues, JWT/OAuth2/CORS, Celery or ARQ/Redis queues, latency, and memory leaks.
Deliverables:
- Clean, tested FastAPI code or pull request.
- Clear explanation of the root cause and next steps.
- Practical deployment notes for your target environment.
Share your repository or error logs, expected behavior, deployment target, and safe test access.
Get to know Jose Robles
Jose Robles
Senior Backend AI Engineer Rust Python FastAPI
- FromSpain
- Member sinceJul 2019
Languages
English, Spanish
Senior Lead Engineer & AI Architect with 14+ years of professional software engineering and 7+ years specializing in Rust, Bitcoin/Lightning infrastructure, and production AI/LLM pipelines.
Former Head of Engineering at DIBA (San Francisco), building Bitcoin L2 libraries, high-performance crates, and cross-platform desktop/mobile apps.
I help teams debug critical bugs, untangle Rust lifetime/async concurrency issues, optimize FastAPI backends, and architect production agentic AI systems. Direct, pragmatic, root-cause focused.
