Senior Python & AI Backend Developer - Milan

Senior Python & AI Backend Developer (Freelance) — Milan area

We're looking for a senior Python backend developer to join a freelance project through Shakers, hybrid in the Milan area (2 days/week on-site in Segrate).

What you'll work on:

• Backend services in Python + FastAPI
• Agentic, multi-turn RAG architectures
• LlamaIndex and Gemini for retrieval-augmented generation
• PostgreSQL (pgvector + full-text search) and Redis as the data layer

What we're looking for:

• Degree in Computer Science, Engineering, AI, or a related field
• 3+ years of backend development experience with Python and FastAPI
• Hands-on experience with LlamaIndex and Gemini
• Experience with PostgreSQL (pgvector + FTS) and Redis
• Proven experience designing agentic, multi-turn RAG architectures
• Excellent English
• Good Italian (B2 minimum)
• Available 2 days/week on-site in Segrate (Milan area)

This is a freelance role via Shakers, a European tech talent marketplace connecting independent professionals with companies across Portugal, Italy, Spain, and the UK.