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Fabien PoirierFP

Fabien Poirier

Data Scientist & Expert RAG

€600/day
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Fabien

Passionate about Artificial Intelligence, I don't see it as a "black box" but as a powerful tool whose workings must be mastered.

What I bring to your projects:

- Generative AI & RAG: Design of chatbots for querying your knowledge bases.
- ML & Deep Learning: Development, training, and optimization of custom models.

My goal is to put my scientific curiosity and experimentation skills to work for your innovations.
Let's discuss your needs!
  • French

    Native or bilingual

  • Spanish

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Leasup
    Design and integration of a real estate Chatbot (RAG) | Freelance
    January 2026 - April 2026 (3 months)
    🏠 Development of an AI assistant (RAG) specialized in Real Estate

    🏗️ RAG Architecture Implementation: OCR for extracting data from real estate contracts (PDF), optimized Chunking strategy, and vector storage.

    🔌 API & LLM Services: Integration and orchestration of cutting-edge models via Mistral AI and Google (Gemini) APIs for natural language processing.

    🗄️ Hybrid Data Management: Utilization of the Elasticsearch client database for Storage and Retrieval, enabling hybrid search (semantic + keywords).

    🛠️ Backend & API Development: Design of API services to bridge the AI engine and business applications.

    💻 Front-end Integration: Development and integration of a dynamic chat interface in React, directly within the client's web ecosystem, for seamless document interaction.
    Python flask Docker Elasticsearch React
  • Département Informatique IUT de Montreuil
    AI Developer – Administrative Assistance RAG System
    September 2023 - August 2025 (1 year and 11 months)
    🧠 RAG System: Development of an intelligent assistant capable of answering administrative questions based on internal documents.

    🛠️ Stack: Using Python with LangChain, ChromaDB, and Ollama frameworks.

    🚀 Docker Deployment: Containerizing the solution with Docker and Docker Compose for a reproducible and stable infrastructure.

    🔌 API & Documentation: Exposing functionalities via a Flask API documented with Swagger for simplified integration.

    👨‍🏫 Skills Transfer: Technical mentoring of interns and apprentices on AI development best practices.
    Python Docker flask ChromaDB
  • Othello
    R&D Engineer in Artificial Intelligence (CIFRE Thesis)
    December 2019 - December 2022 (3 years)
    🎥 Anomaly Detection: Development of an AI for real-time video stream analysis.

    🏗️ Hybrid Architecture: Design and training of models combining CNN and RNN to capture spatial and temporal information.

    🤖 Deep Learning: Testing and optimization of various architectures (VGG16/19, Xception, EfficientNet) and YOLO models (v3 to v7).

    📊 Explainability: Implementation of saliency maps and Grad-CAM to make model predictions interpretable.

    🔬 Scientific Rigor: Study of the state-of-the-art (Vision Transformers, Autoencoders) and international publications.
    Python YOLO keras OpenCV

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Education

  • PhD
    University Paris 8
    2024
    Intelligence Artificielle

Skill set

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