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fastapier (Freelance Backend)

FastAPI backend engineer | JWT, payments, AI integration Fixing broken auth and API issues across Docker and production. Building APIs for SaaS and internal tools.

Japan Joined on Feb 20, 2026 fastapienne@gmail.com https://github.com/hiro-kuroe

Work

FastAPI Backend Engineer (Freelance)

fastapier (Freelance Backend)

Mar 25

Building a Production-Aware AI Backend with FastAPI

#fastapi #python #ai #openai

4 min read

fastapier (Freelance Backend)

Mar 18

Building a Production-Ready AI Backend with FastAPI and OpenAI

#fastapi #openai #ai #saas

2 min read

fastapier (Freelance Backend)

Mar 8

Building a Stripe Subscription Backend with FastAPI

#fastapi #stripe #python #webdev

3 min read

fastapier (Freelance Backend)

Feb 21

401 Is Not the Bug. It’s the Signal.

#fastapi #jwt #authentication #python

1 min read

fastapier (Freelance Backend)

Feb 20

Your API Is Replying… But Authentication Is Already Broken (FastAPI JWT)

#fastapi #python #jwt #docker

1 min read

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