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Freelance Backend Engineer (FastAPI) - Freelance

Collective.work

Paris, Île-de-France, France Full-time July 09, 2026
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Vacancy Description

Job description


Taux journalier (TJM): 600€

We are searching a freelance Backend Engineer (FastAPI) for an urgent mission.


📍 Paris - Hybrid (2 days/week onsite)


💰 €600/day


⏳ Long-term mission


Profiles will be sent today/tomorrow.


Core stack:


* Python


* FastAPI


* PostgreSQL / SQL Server


* REST APIs


* TDD / software engineering best practices



Big plus if you also worked with:


* LLM / RAG / AI workflows


* Temporal or DBOS


* Vector DBs (pgvector, Pinecone)


* Docker / Kubernetes / OpenShift


TypeScript or .NET experience is also appreciated.

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