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Valentin LefrancVL

Valentin Lefranc

Python Developer / Data Scientist

€500/day
Lorient, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Valentin

After a PhD in astrophysics at the CEA, I turned to data science. My skills in mathematical modeling and computer development allow me to integrate into any data science / dataviz / artificial intelligence / Web app project. I am passionate about creating algorithms and solving complex problems that R&D projects can bring.
  • English

    Fluent

  • Spanish

    Fluent

  • French

    Native or bilingual

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

Experience

  • CEA Saclay
    Post doctoral research scientist
    RESEARCH
    March 2021 - Today (5 years and 3 months)
    Saclay, France
    Developpment du software Astro COLIBRI (astro-colibri.com). Analyse de données , simulation ...
    Flutter Simulation Python
  • Compass financial technologies
    Data scientist
    BANKING AND INSURANCE
    September 2018 - Today (7 years and 9 months)
    Lorient, France
    Python flask C#
  • See-d
    Data scientist
    SOFTWARE PUBLISHING
    September 2016 - Today (9 years and 9 months)
    Vannes, France
    - Associate research scientist at the LMBA (Laboratoire de Mathématique de Bretagne Atlantique)

    Projects:
    - Machine learning algorithms
    - Mathematic modeling
    - Predictive maintenance
    - Pricing
    - Smart Farming
    - Smart Building
    - Clustering
    Project management Big Data Data science Machine learning Python R MongoDB

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Education

  • Doctorat
    Université Paris Saclay
    2016
    Title "Search for dark matter, observation of the Galactic Center with H.E.S.S. and upgrade of the H.E.S.S. I camera"​ Supervisor : Emmanuel Moulin 3 years project financed by the CEA Saclay and DESY Zeuthen. Analysis of the H.E.S.S. telescope experiment: Galactic Center data with H.E.S.S. I and H.E.S.S. II Development of a 2 dimensional likelihood taking advantage of the dark matter spatial and spectral distribution. Applied for H.E.S.S. and the sensitivity of the futur telescope CTA. Participation to the H.E.S.S I camera upgrade effort in DESY Zeuthen. Calibration of the electronics : Pedestal measurement, Single photoelectron, Cross talk ... Teaching at University Paris sud 11: Practical work in electromagnetism and C#. Methodology and tutorial for fundamental physics students.

Skill set (22)

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