Freelancer profile translated to English.

Description

Tech Lead / Architect / Senior Java Developer with over 14 years of experience, I support companies on high-value projects related to architecture, APIs, and identity management (IAM).

I work on complex contexts (IT system modernization, access security, API platforms, cloud migration), both in design and advanced development, with a results-oriented approach and a strong ability to produce robust, maintainable, and performant code in demanding and scalable environments.

What I can bring you concretely

Senior Development: design and implementation of complex features (backend & frontend)
Implementation of robust IAM solutions (SSO, OAuth2, OIDC, Keycloak, Entra ID)
Design and development of performant APIs (Spring Boot, REST / event-driven architecture)
Modernization to the Cloud (GCP / Kubernetes) and CI/CD implementation
Transformation of legacy architectures → microservices
Improvement of software performance and quality (testing, observability, industrialization)
Technical lead & team support

My key expertise

Backend: Java, Spring Boot, REST API, Microservices
Frontend: Angular
IAM & Security: Keycloak, OAuth2, OpenID Connect, JWT, Entra ID
API Management: Gravitee, Apigee X
Cloud & DevOps: GCP, Kubernetes (GKE), Docker, GitLab CI/CD
Architecture: Event-driven, scalable, high availability

My types of missions

Tech Lead / Senior Fullstack Developer
IAM Expert / Keycloak
API & Integration Architect
Cloud & DevOps Modernization

Open to missions (remote / hybrid) in high-value technical contexts.

Languages

French
Native or bilingual
English
Conversational
Spanish
Basic

Workplace preferences

Can work on-site

Paris (up to 50km), Lyon (up to 50km)

Heppner
Tech Lead
July 2023 - April 2026 (2 years and 9 months)
Technical leadership of the Heppner group's digital transformation program, including the modernization of the authentication foundation and internal/external APIs.
Migration from OpenLDAP to Keycloak 26+ (SSO, custom SPI, protocol mappers, custom JWT claims).
Integration of Gravitee APIM on GKE environments (DEV/TEST/PROD) with Cloud Armor configuration, policies, and API Keys.
Implementation of Keycloak authentication (ROPC Flow) via Spring Boot (token/refresh/FeignClient).
GitLab CI/CD optimization: multi-module Maven build, Nexus deployment, Xray + Cucumber integration, automated tagging.
Technical support for the full-stack team (Java/Spring/Angular 20), code review, best practices.
Implementation of structured logs, caching (Caffeine/Redis), and monitoring (Grafana/Prometheus).
Technical environment: Java 21, Spring Boot 3.x, Keycloak 26.2.4, Angular 20, Gravitee 4.x, GCP GKE, Azure, Redis, Kafka, Nexus, GitLab CI/CD.
OAuth2 / OpenID Connect Microservices CI/CD (GitLab, Jenkins) Docker / Kubernetes (K8s) REST API & API Security
DGFIP / Groupe Mousquetaires
Tech Lead
November 2020 - June 2023 (2 years and 7 months)
Implementation of technical architectures (Java EE / Spring / Batch / Hibernate).
Client workshop facilitation, team leadership (up to 8 developers), scoping and estimation of enhancements.
Design and development of critical modules, code review, maintenance, and CI/CD.
Technical POCs and client presentations.
Environment: Java EE 8, Spring, Hibernate, PostgreSQL, Maven, Git, Eclipse.
Novelis
Tech Lead / Technical Expert
January 2019 - March 2020 (1 year and 2 months)
Participation in defining the technical foundation and implementing the application architecture.
Development of critical features and performance optimizations (TDD, JUnit).
Supervision and training of developers, participation in functional scoping.
Implementation of secure REST APIs and Angular front-end integration.
Environment: Java 8, Spring, Hibernate, Angular, MySQL, Azure, Hybris, Redis, SonarQube, Jenkins.