Freelancer profile translated to English.
Back to original languageAbout Julien
Senior software development engineer specializing in C++ and Python, I work on critical embedded systems, signal/video processing, and CI/CD infrastructures.
My experience covers the full development cycle — from embedded algorithms to continuous integration.
I provide robust and high-performance solutions in the defense and energy sectors.
French
Native or bilingual
English
Fluent
Japanese
Basic
Can work on-site
Mantes-la-Ville (up to 50km)
Experience
- EnedisSenior Software Development Engineer (C++ / Python / CI/CD)ENERGY AND UTILITIESMarch 2025 - Today (1 year and 3 months)Courbevoie, FranceDesign and development of power grid configuration and supervision applications.Participation in defining modular and robust software architectures.Implementation and maintenance of continuous integration and software quality analysis pipelines (GitLab CI/CD, SonarQube, Docker).Development of Python tools for automation and configuration data processing.Collaboration with system and DevOps teams for software deployment reliability and traceability.
- LerityGUI & Image Processing Software Engineer – Optical SystemsDEFENSE AND MILITARYJuly 2024 - March 2025 (8 months)Cergy, FranceDevelopment and integration of a GUI for the CatEye Horizon20 system, dedicated to multi-sensor observation and detection.Participation in the design of real-time video processing chains and their integration into the embedded system.On-site installation, operator training, and technical support.Technical referent and responsible for software monitoring throughout the project cycle.Team management and interdisciplinary technical coordination (optics, electronics, software).
- THALESIntegration, Test, and Validation Engineer – Critical Vision Embedded SystemsDEFENSE AND MILITARYDecember 2022 - June 2024 (1 year and 6 months)78990 Élancourt, FranceDevelopment and execution of validation plans for the TALIOS optronic pod (multi-sensor embedded systems).Implementation of Hardware-In-the-Loop (HIL) test benches for simulation and verification of video chains (infrared, near-IR, color).Development of Python and C++ tools for control, capture, and analysis of complex video signals.Integration and verification of target detection and classification algorithms based on an embedded AI model.Analysis of model performance and definition of test criteria for functional validation and robustness.Contribution to technical documentation, reporting, and software know-how capitalization.
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Education
- Mechatronics EngineerISTY2013Ingénieur Mécatronique
- Professional Bachelor's Degree in Mechatronic Product and Equipment DevelopmentIUT2010Licence Professionnelle Développement de Produits et Équipements Mécatroniques