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Henri S.HS

Henri S.

Data Analyst / Data Visualization/ Data Scientist

€700/day
7 projects
Paris, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Henri

Data Scientist & AI Engineer: The Generative AI Expert who supports you in your Projects


Data Scientist & AI Engineer specialized in generative AI and chatbot development, I have over 3 years of experience in transforming raw data into strategic levers for your projects. With my technical expertise and business vision, I support my clients from the scoping phase to the operational maintenance of tailor-made solutions.
  • **Generative AI & Chatbots**: Design and deployment of intelligent chatbots as well as prediction and classification algorithms, including fine-tuning advanced models like Mistral AI, to meet the specific challenges of your sector (e.g. La Banque Postale, Crédit Agricole, BPCE SI).
  • **Data Analysis & Visualization**: Creation of impactful visualizations and interactive dashboards in Power BI, combined with in-depth analysis via Python, SQL, Jupyter Notebook, and Google Cloud Platform, transforming your data into strategic insights.
  • **Big Data & Cloud**: Mastery of Big Data environments and cloud platforms such as Google BigQuery, AWS, and Google Cloud, ensuring optimal management of massive data volumes.
  • **Web Scraping & Integrations**: Extraction of essential data through advanced web scraping techniques, with integration via REST API to connect and enrich your systems.
  • **Project Management**: From design to deployment and maintenance, I ensure complete project monitoring, with a particular focus on strategic scoping and the sustainability of deployed solutions.

Passionate about innovation and digital transformation, I put my expertise at the service of your data challenges to turn them into real growth opportunities. Contact me to discuss your next Data Science and AI project.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • Prescriptive-fs
    Data Scientist
    BANKING AND INSURANCE
    September 2024 - March 2025 (6 months)
    Paris, France
    • Optimization of the company classification algorithm and benchmarking of associated hyperparameters.
    • Migration of a zero-shot prompting architecture on ChatGPT to a multi-agent solution, with each agent fine-tuned for specific tasks on Mistral AI.
    • Deployment of a time series prediction algorithm combining statistical models (SARIMAX) and algorithms from Google Deepmind via Times FM and TimeGPT (by Nixtla).
    • Development of an automatic retrieval algorithm for legal articles, analyzed by various LLMs.
    • Migration and deployment of a generative AI architecture on AWS (Bedrock, ECR/ECS, DynamoDB) in multi-region, integrating distinct environments for development and production.
    • Application of the Agile methodology via Jira for project monitoring and maintenance.
    Artificial Intelligence Atlassian JIRA Generative AI AWS Cloud
  • rpc – The Retail Performance Company
    Data Extractor
    CONSULTING AND AUDITS
    November 2023 - January 2024 (2 months)
    Paris, France
    Web scraping algorithm within a scraping engine to extract data for the BMW group.
    Python Playwright GitHub Jira Agile methodology Web Scraping Atlassian Confluence
  • Metro AG
    Data Completeness Analyst
    AGRICULTURE
    February 2023 - August 2023 (6 months)
    Paris, France
    During this assignment, I analyzed all of Metro's data using a detailed mapping of it. Simultaneously, I established links between the different columns of Metro's database to perform joins between the multiple databases concerned. Thanks to this methodology, I was able to determine the various causes of the incompleteness of the data in question.
    Python (Programming Language) Dashboard Pandas Microsoft Power BI Data Visualization Google Cloud Platform (GCP) BigQuery

Reviews

5.0

Out of 3 ratings

SergeS

Serge

Prescriptive-fs

Reviewed on 12/4/2024

Henri did an excellent job, we recommend him.
SergeS

Serge

Prescriptive-fs

Reviewed on 10/7/2024

Henri did an excellent job on the assignment. We recommend him.

Recommendations

Gerald DufloGD
TL
FU
+1
Gerald Duflo and 3 other people have recommended Henri

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Education

  • Computer Engineering
    ESILV
    2023
    École d'ingénieur dans le domaine de la data et de l'IA

Certifications

Skill set

Categories