Freelancer profile translated to English.
Back to original languageAbout Marcelin
Senior Java Engineer with nearly 9 years of experience in Back-End development and distributed architectures (Spring/JEE).
Recognized for my expertise in performance optimization, code quality, and deployment (CI/CD).
I also have hands-on experience in Front-End development of SPA applications using React JS. I am driven by technical challenges and Agile leadership.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 30km), Orléans (up to 10km)
Experience
- Direction de l'information légale et administrative (DILA)Java DeveloperPUBLIC SECTOROctober 2022 - February 2025 (2 years and 4 months)Paris, FranceThe objective of the mission is to integrate the Service-public platform to cover the needs in terms of creation, evolution, operational maintenance, and security of a significant part of the information systems, meeting strong requirements for performance, accessibility, security, and robustness of the various IS.Missions:– Development, maintenance, and security of the platform.– Implementation of services (impound vehicle verification, police station appointments).– Refactoring, unit/integration tests (TDD), code reviews.– Correction of SonarQube anomalies, log analysis (Kibana).– Technical stack migration.
- FNAC - DARTYJAVA DeveloperE-COMMERCEJanuary 2021 - October 2022 (1 year and 9 months)Ivry-sur-Seine, FranceThe objective of the mission is to evolve Fnac's new search engine (V4) to meet performance constraints due to search engine traffic and data relevance for users.Missions:– Optimization of search engine performance and relevance.– Operational maintenance, analysis, and bug fixing.– Unit, integration (TDD), and end-to-end tests.– Deployment management, code reviews (Python).– Improvement of the CI/CD workflow (GitLab CI).
- VOXALYLead Java DeveloperPUBLISHINGOctober 2019 - December 2020 (1 year and 3 months)Nantes, FranceProjects: Voxcore, ActionnariatMissions:– Team supervision and skill development for junior developers.– Development and integration of new features.– TDD tests, legacy code refactoring, code reviews.– Packaging, delivery, and production deployment.
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Education
- Software Engineering and Development Engineerinstitut d'ingénierie informatique de Limoges (3iL)2017développement Java et Robotique, IA & systèmes embarqués