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Alexandre AnsartAA

Alexandre Ansart

AI Agent Engineer | LangGraph, RAG, Agents

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Alexandre

Looking for a developer to take your agentic AI projects from POC to production?

I design and develop agentic AI systems: LLM agents, RAG pipelines, workflow automation, running in production.

What I can bring you specifically:

- AI feasibility audit and architecture recommendations (RAG, agents, model choices)
- Full development of AI agents and LLM pipelines (LangGraph, LangChain, Claude/OpenAI API)
- Integration of semantic/multimodal search into your existing tools
- Automation of business workflows via autonomous agents
- FastAPI backend, vector databases (ChromaDB, Pinecone), deployment (Docker, AWS, Vercel)

What sets me apart:

- Former CTO of an AI startup (Connativ): I have already managed the end-to-end architecture of an AI product in production, not just coded isolated features
- I designed an agentic forensic analysis software for the French Scientific Police (air-gapped environment, sub-100ms latency), featured in Technica Magazine
- 2nd place in the European AI & Cybersecurity Championship (CISPA) against teams from ETH Zurich and Polytechnique
- Bilingual French/English (dual French-American nationality): I can work with international teams without friction

Types of projects and typical deliverables:

- AI discovery sprint (1 week): audit + POC + architecture recommendations
- Full development of an AI agent or pipeline (RAG, LangGraph workflows, API, deployment)
- Ongoing support for teams upskilling in agentic AI

Available immediately, full-time, remotely or on-site (Île-de-France).

More details and demos at alexansart.com.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • German

    Conversational

  • Chinese

    Basic

Can work on-site
Paris (up to 50km)

Experience

  • Connativ
    Co-Founder & CTO
    SOFTWARE PUBLISHING
    November 2025 - April 2026 (5 months)
    Lyon, France
    As co-founder and CTO of Connativ (an AI document automation platform for architecture firms), I designed and developed the entire AI pipeline for reviewing and modifying complex technical documents (PDF/DOCX) using natural language instructions.

    Architecture:Agents orchestrated with LangGraph that interpret user requests, analyze document structure, apply targeted modifications, and then regenerate a formatted document.

    FastAPI backend, Claude (Anthropic) API integration, LangChain processing chains.

    This project was ranked 2nd in the Stanford ASES France Challenge.

    connativ.com
    LangGraph Typescript Agentic AI Langchain Claude
  • SNPS - Service national de police scientifique
    Developer and Technical Project Manager
    PUBLIC SAFETY
    October 2025 - June 2026 (8 months)
    Lyon, France
    Technical project manager and developer for OPSEMIA, a multimodal semantic search engine for forensic data analysis, developed for the French Scientific Police.

    Hybrid BGE-M3 + BLIP-2 architecture (text, image, video) deployed in an air-gapped environment (no internet access), with search latency below 100ms.

    Results: 1st prize at Centrale Lyon's CLIC Week (400 participants), re-invited by the Scientific Police to finalize operational deployment, and featured in Technica Magazine:

    Public prototype source code available on GitHub: github.com/AlexAnsart/OPSEMIA

    (The final deployed version of OPSEMIA is confidential).
    RAG Semantic Search Computer Vision Python Docker
  • Centrale Lyon IA
    President
    ENTERTAINMENT AND LEISURE
    October 2025 - June 2026 (8 months)
    Lyon, France
    President of the Centrale Lyon AI association and organizer of the Unboxed hackathon, an inter-school event with 100 participants sponsored by MistralAI and GE Healthcare (€6000 prize money).

    Technical jury member, responsible for coordination with sponsors and defining challenges for the teams.
    Leadership Event Management Networking Artificial Intelligence

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