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Charles BillonCB

Charles Billon

BI Consultant, Data Engineer

€700/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Charles

Big data / BI
For fifteen years, I have been working on big data end-to-end: from cleaning, processing, to data restitution and organizing visualization according to a storytelling adapted to the target audience, for the best possible dissemination.

Architecture
Constantly practicing technological watch, and having a dual editor (Microsoft) / Open Source culture, I am able to design the most suitable solutions for the needs and capabilities of teams as well as industrialize them. My method: agility!

Data science
After training in exploratory statistics, modeling, factorial analysis, time series, experimental designs, I also practice neural networks with machine learning.
Expert in Python, I also know how to implement it in R.

Mechanics / Industry:
With a broad culture in engineering, mechanics, and industry, my experiences have led me to work on metal 3D printing.

  • English

    Fluent

  • German

    Conversational

Can work on-site
Paris (up to 50km), Lyon (up to 10km), Marseille (up to 10km), Clermont-Ferrand (up to 10km)

Experience

  • DGFIP
    CP Data
    HUMAN RESOURCES
    April 2023 - September 2023 (5 months)
    Paris, France
    Project owner of the Arche application (change management support – Bercy Innov Laureate)
    Python PostgreSQL UML Django REST API Docker ChatGPT
  • DGFIP
    Postgres Expert
    HUMAN RESOURCES
    January 2023 - April 2023 (3 months)
    Montreuil, France
    Merging all payslips (5 million) into a single environment by loading each night from 27 'corridors'.
    Design, development, and industrialization with optimized loading time (process 60 times faster than initial developments).

    PostgreSQL CentOS PL/SQL Bash
  • RTE
    CP Data Engineer / Business Modeling
    ENERGY AND UTILITIES
    January 2021 - October 2021 (9 months)
    Paris, France
    Feasibility study for industrializing energy mix simulation studies.
    - Gathering business practices around the simulation of the French and European electricity grid.
    - UML modeling for the convergence of energy businesses (Hypothesis framework, future of the grid, queue, weather...) for the electricity grid situation and supply/demand balance.
    - POC carried out under R, Rstudio, Rest Server, Antares, ImaGrid/Metrix with the objectives of:

    Industrializing processes - Facilitating the daily work of study engineers, simplifying HMIs – reducing manual operations - traceability - fast processing with targeted flows – reducing storage volume.
    REST API R Bash Linux UML

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Education

  • Master M123a Statistics - Data Science CNAM
    CNAM
    en cours du soir
  • Metal additive manufacturing
    college polytechnique
    2015
    Etat de l'art sur l'impression 3D métallique

Skill set (37)

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