Freelancer profile translated to English.

Description

Passionate about data, I regularly develop personal projects focused on programming, analysis, and data cleaning. This approach allows me to continuously expand my skills beyond my university curriculum and strengthen my mastery of data science tools and methods. With experience in a startup in the energy sector and currently interning at the FANLAB within the French Navy, I am exploring different aspects of Data. My portfolio:

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Marine Nationale
Data Developer
DEFENSE AND MILITARY
March 2026 - Today (3 months)
Toulon, France
Design and development of data-oriented business applications (Python, JavaScript) and interactive dashboards to meet the operational requirements of the French Navy (FANLAB).

Modeling and structuring of relational databases, ensuring technical consistency between data architecture (tables, relationships) and deployed application solutions.

Exploitation and valorization of data within short-cycle innovation projects, enabling rapid deployment of decision support tools for operational teams.
Python Programming SQL Data Science Front-End Development Docker
la bellenergie
Data Scientist
ENERGY AND UTILITIES
March 2025 - May 2025 (2 months)
Toulon, France
Development of an ETL pipeline in Python for
ingesting and transforming CSV files of
energy purchase forecasts (D+1 to D+10), including a
cleaning logic to isolate the most reliable daily
prediction.

Performing a gap analysis visualizing the delta
between forecast data and actual consumption
(Excel sources) to evaluate model accuracy and
energy portfolio balance.

Producing a Power BI dashboard for stakeholders
and decision-makers.
Python Programming Data Visualization Data Science Data Cleaning and Preprocessing Git

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Computer Science Bachelor's Degree
University of Toulon
2025
La formation s'appuie sur un socle rigoureux en mathématiques appliquées, logique et algorithmique. Le raisonnement, la conception et la modélisation priment sur l'apprentissage brut des langages de programmation. Un cursus très exigeant il apporte un bagage solide en mathématiques Elle permet d'entrer sur le marché du travail à Bac+3, Sensibilisation à la cybersécurité : Le parcours détient le label national « Cyberedu » de l’ANSSI (obtenu en 2023 pour 3 ans). Ce cursus s'adresse aux étudiants cherchant à acquérir des compétences durables et fondamentales, capables de concevoir au-delà de ce que peuvent générer les IA actuelles, plutôt qu'à ceux cherchant une maîtrise technologique immédiate.
Master's Degree in Data
University of Toulon
2026

Corentin Hellier

Developer

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