Freelancer profile translated to English.
Back to original languageAbout Léo
I help companies in the design and development ofrobust,data**-oriented, and **production-readyapplications.
Objective: transform complex business needs into reliable, maintainable, and high-performing software solutions.
👨💻Full-Stack Python / VueDeveloper
⚙️ AWS, CI/CD, and Software Industrialization Expert
🧠 INSA Engineer
Currently, I am autonomously developing a Full-Stack statistical analysis and decision support application for a civil engineering firm.
This platform (Python / Vue3) allows for ingesting and structuring data from files, manipulating it through table-like interfaces, and then producing various analyses: exports, histograms, scatter plots, and statistical indicators.
The data is stored inPostgreSQLand analyzed from different angles to facilitate exploration and decision-making.
The project also includes acomplete CI/CD pipeline,automated testing, and afully industrialized deployment.
Throughout my career, I have worked in demanding technical environments:
🇩🇪 Munich – Automotive Industry: validation of embedded electronics within an international Agile team.
🚆 SNCF – Data Engineering / Data Science: industrialization of a pipeline processing over 300 GB of daily data from trains in operation.
🚀 Mergify – CI/CD Specialized Startup: development of B2B products and continuous improvement of software quality in an experienced team. I also took on responsibilities in project management, knowledge sharing, and technical communication (PyCon 2024 conference, technical articles).
🌍 I speak five languages fluently, including German, which facilitates working with international teams.
I would be delighted to discuss your project and provide you with a solid, well-designed, and sustainable technical solution.
French
Native or bilingual
English
Native or bilingual
German
Native or bilingual
Portuguese
Native or bilingual
Spanish
Fluent
Can work on-site
Strasbourg (up to 50km)
Experience
- Léo EcrepontSenior IT Consultant - IndependentCIVIL ENGINEERINGApril 2025 - Today (1 year and 4 months)Strasbourg, FranceAs a senior consultant, I lead the design and delivery of a full-stack statistical calculation and decision support application for a client in the civil engineering sector.I designed an ETL pipeline to structure input datasets and load them into a PostgreSQL database.I then perform several statistical calculations on various queried datasets to produce sensitive and concrete indicators for geological engineers.I manage project governance (planning, meeting facilitation, minute-taking, risk management) while ensuring the quality of data processing.The application, developed in Python and TypeScript, includes continuous monitoring and maintenance, resulting in an 80% performance gain in calculation times compared to previous internal solutions used by my client.
- MergifySoftware EngineerTECHApril 2023 - January 2025 (1 year and 9 months)Toulouse, FranceDevelopment of product features for a cutting-edge French startup specializing in CI/CD.Participation in the design and integration of features, including an AI model for text classification.Contribution to technical architecture choices, SQL and NoSQL data model design, workload estimation, and prioritization among various projects.I served as a liaison between product and technical teams, ensuring the formalization of requirements and the quality of deliverables.I also contributed to improving internal processes and engineering practices (quality, automation, robustness).Finally, I represented the company by writing several technical articles and presenting a conference at PyConFr 2024.
- CGIPython Data Scientist EngineerTRANSPORTATIONMay 2021 - March 2023 (1 year and 9 months)Lyon, FranceLyon, Auvergne-Rhône-Alpes, FranceAttached to the SNCF Rolling Stock Department for the Conditional Based Maintenance / Transdata migration project. The objective is to improve service quality for rolling stock by utilizing data transmitted by trains.My mission:- Design and management of databases and APIs for maintenance tools- Migration and optimization of the "business logic" for Data processing in Python- Transition to a highly scalable AWS Cloud architecture- Production deployment and CI/CD automation- UI Design
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Education
- Electrical Engineering DiplomaINSA Strasbourg2015Solide formation en électrotechnique, électronique analogique et numérique. Approche multidisciplinaire par projets dès la troisième année. Double diplôme réalisé avec une université étrangère et 7 mois de stages effectués à l'étranger. Membre du bureau des élèves pendant une année.
Certifications
- AWS Certified Developer - AssociateAmazon Web Services2023