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Charles De ValoisCD

Charles De Valois

Data Analyst Tableau Python | Analytics Engineer

€620/day
4 projects
Bordeaux, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Charles

Looking for aData Analyst with a strong business senseand expertise inPython and Tableauto advance your Data & AI projects?

With a **TRULY hybrid Data and Business profile**, I bridge the gap between business and technical teams.

Results-oriented, I can assist you with:
  • Analyzing your data and identifying business opportunities
  • Designing and implementing reporting (Tableau or PowerBI)
  • Understanding business needs
  • Data Engineering (creating data pipelines, implementing data platforms)
  • Developing AI-driven web solutions
  • Python development
  • Data project management
  • Data team management
To achieve this, I offer:

*7 years of technical experiencewith a Data software vendor for clients like Hong Kong Airport or SNCF

*8 years in Digitalon websites with +3 million monthly visits as Operations Director, Analytics Director, or Entrepreneur

*6 years in Industryas a BI Project Manager or Manager

My achievements

At Smart Flows, I led the overhaul of the passenger flow data pipeline. A technically complex data project that resulted in:
  • improved data quality for 80% of passenger journeys
  • a 50% reduction in the Operations team's workload

How I work?

🟡 Curious and rigorous,
I love creating - products, dashboards - and orchestrating skills to successfully complete team projects.

🟣 Pragmatic and tenacious,
I see deliveries through to completion.

Shall we discuss your project?

Check out my professional website:chvalois.avisol-ds.fr

And in my portfolio:
  • **Snakepitch.com**: AI coach that helps candidates prepare for job interviews
  • **Complete real estate listing data pipeline**: scraping, database, BI implementation, and monitoring (GCP, Docker, PostgreSQL, dbt, Metabase)
  • French

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Bordeaux (up to 50km), Paris (up to 50km), Niort (up to 50km), Toulouse (up to 50km), Poitiers (up to 50km)

Experience

  • MACIF
    Data Analyst Dataiku Tableau
    BANKING AND INSURANCE
    October 2025 - Today (8 months)
    Niort, France
    Data Governance / Unique Customer Reference

    Creation of Dataiku data transformation pipelines

    Creation of dashboards in Tableau
    Tableau Software Dashboards Dataiku Dataiku DSS
  • Smart Flows
    Data Analyst Tableau
    TECH
    July 2025 - July 2025
    Bordeaux, France
    • Understandingclient needs
    • Analysis of existing data
    • Proposals for relevant analyses
    • Exploratory data analysis inTableau
    • Creation of insights for a major European airport using Tableau
    • Presentation of insights to the entire team
    • Developed in Tableau
    Tableau Software Data Visualization Data Analysis Business Intelligence Tableau Desktop
  • Client Bancaire
    Generative AI Project Manager
    BANKING AND INSURANCE
    April 2025 - June 2025 (2 months)
    Bordeaux, France
    - Creation of an application to generate architecture diagrams from instructions (goal: reduce time spent by IT architects on creating architecture diagrams by 50%)

    - Implementation of a framework for selectingOpen Source LLMmodels based on use case needs

    - Impact study of the AI Act
    Generative AI

Reviews

5.0

Out of 2 ratings

B

Bruno

Smart Flows

Reviewed on 10/22/2025

Excellent results delivered on time, well done!
A

Armand

Smart Flows

Reviewed on 7/4/2025

A big thank you for this smooth and high-quality collaboration. Charles quickly understood our business challenges, proposed relevant analyses, and delivered clear, actionable, and well-structured results. Impeccable communication, complete autonomy, and always proactive – a true partner to count on. I highly recommend for any ambitious data project.

Recommendations

AM
Hai Nam TruongHN
AD
Anthony Mocaer and 2 other people have recommended Charles

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Education

  • Master of Science
    EDHEC Business School
    2004
    Master of Science - MS, Marketing

Certifications

  • ML Ops
    Datascientest.com
    2024
    Airflow MLflow Prometheus FastAPI Google Cloud Bash Grafana
  • Data Scientist
    Datascientest.com
    2022
    Python Programming Machine Learning Natural Language Processing (NLP) MySQL Deep Learning TensorFlow

Skill set

Categories