You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Yohann Le FaouYL

Yohann Le Faou

Freelance AI Engineer & Researcher

€700/day
Paris, FR
8-15 years

Average response time: 1 hour

About Yohann

I help companies design, build, and deploy AI solutions that deliver measurable business impact.

With 6+ years of experience turning ML models into production systems across industries (insurance, energy, manufacturing), I bridge the gap between data science and real-world operations.

My expertise includes:
- Tech stack: Python (pandas, numpy, scikit-learn, Streamlit, API design, ML libraries), Docker, Bash, SQL, Git (CI/CD).
- Delivery: Experienced in working within complex organizations — project delivery, timeline, reporting, and coordination with multiple stakeholders.
- Leadership: Former team lead managing 3 data scientists; strong communicator with a track record of presenting technical work to non-technical audiences.

Impact:
- Led deployment of a predictive maintenance solution from zero to 200+ plants and 50+ users, for a leading ciment manufacturer.
- Developed a Supply Network Risk application dedicated to supply chain planners for a leading medical device manufacturer (from 0 to 5 users).
- Automated medical selection process (40% automation rate) with Azure-based ML microservices for a leading french bank.
- Built and deployed ML solutions for major insurers to automate document processing of insurance contracts and legal clauses.

Research & innovation: PhD in Statistics & Mathematics, open-source contributor (e.g. data drift detection), Kaggle Expert, and active in quantitative trading research.

Methodology:
I start from concrete business needs, prioritize high-value use cases, and iterate feature by feature to deliver production-ready solutions.

Currently available for freelance missions in AI product development, applied machine learning, and quantitative modeling.
  • French

    Native or bilingual

  • English

    Fluent

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

Experience

  • Freelance
    Freelance AI Engineer & Researcher
    January 2025 - Today (1 year and 5 months)
    Paris, France
    Freelance: Providing services in data science and machine learning, focusing on predictive modelling, AI applications, and analytics. Leveraging prior experience in data science and AI projects for global clients (more info in my bio).

    Side project: Developing and deploying automated trading strategies, from quant research to production-ready systems.
  • C3 AI
    Senior Data Scientist
    SOFTWARE PUBLISHING
    April 2022 - October 2024 (2 years and 6 months)
    Paris, France
    Key responsibilities:
    - Delivered Data Science projects as both individual contributor and team lead
    - Designed and implemented new ML features tailored to client needs
    - Reported project progress and outcomes to internal and client stakeholders
    - Mentored and supported junior team members in their growth

    Typical projects are long-term collaborations with Fortune 500 companies, including:
    - Deployment of C3 AI Predictive Maintenance application for a major cement producer, improving asset reliability and reducing downtime
    - Development of a Supply Network Risk application for a leading medical device manufacturer, predicting supply chain delays and enabling proactive mitigation
  • Zelros 3 ans
    Lead Research Scientist
    BANKING AND INSURANCE
    November 2021 - April 2022 (5 months)
    Paris, France
    - Medical selection for credit insurance and monitoring (metrics, distributions of X & y, data drift, continuous integration, continuous improvement of the model), in production ML (tools: Docker, Flask, Jenkins, Azure, github, Airflow)
    - open source our research project for data drift detection and mitigation: https://github.com/zelros/cinnamon
    - Semantic search engine: sentence embedding (sentence-transformers, Siamese network, pretrain models).
    - Research topics in NLP: related to QA and search engine (transformers, question answering, question generation, large model training with T5, BERT, BART). Responsible of Zelros contribution to the LinT0 project.
    - ML explanability, Responsible AI: focus on Consistent AI (outlier detection, confidence
    score, confidence & prediction intervals, counterfactual examples, causality). Integration of some responsible AI features in Zelros autoML.
    - Beneficiary clauses (automation of the processing of clauses): entity recognition (spaCy, Flair),
    data labelling (doccano), heuristics, industrialization with API (Flask).
    - Participate to Data science Olympics organization
    - Technical communications (autoML, model explanability)

Recommendations

Be the first to recommend Yohann

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Doctor of Philosophy - PhD
    Université Pierre et Marie Curie
    2019
    Doctor of Philosophy - PhD
  • Master's degree in
    École normale supérieure de Rennes
    2015
    Master's degree in

Categories