Freelancer profile translated to English.

Description

Graduate engineer from Télécom SudParis with over 8 years of experience.

Expert in Java / Spring Boot, specializing in the design of data platforms and robust backend architectures.

Involved in high-stakes projects including Angular, data pipelines (Airflow), CI/CD, and application security (OAuth2, Keycloak).

Languages

French
Native or bilingual
English
Native or bilingual

Workplace preferences

Can work on-site

Paris (up to 50km)

Action Logement Services
Senior Developer
REAL ESTATE
January 2025 - Today (1 year and 5 months)
Paris, France
• Development and maintenance of a large-scale data and mapping platform for the analysis and valuation of real estate.
• Design and implementation of backend APIs in Java 21 / Spring Boot 3 using a hexagonal architecture (DDD, Ports & Adapters).
• Development of interactive mapping features with Angular (standalone components) and MapLibre GL.
• Backend and SQL performance optimization (PostgreSQL / PostGIS): materialized views, geospatial queries.
• Implementation of data processing pipelines via Airflow (DAGs), RabbitMQ integration, and asynchronous processing.
• Implementation of a data export system (dynamic SQL, Metabase, S3 storage, secure download).
• Application security with OAuth2 / Keycloak / Auth0 and fine-grained role-based access control.
• Deployment and operation on Kubernetes with GitLab CI, ArgoCD, and Docker.
• Implementation of unit and E2E tests (JUnit, Jest, Cypress) and monitoring via Prometheus and Grafana.
• Active contribution to architecture choices, code reviews, and team's technical best practices.
Technical environment: Java 21, Spring Boot 3, DDD, PostgreSQL/PostGIS, Flyway, Angular 19, NgRx, RxJS, MapLibre GL JS, Airflow, RabbitMQ, Metabase, S3, Docker, Kubernetes, GitLab CI, ArgoCD, Keycloak, OAuth2, Cypress, Jest, Prometheus, Grafana

Organization
Java Angular PostgreSQL Gitlab CI/CD OAuth2
BNP Paribas,
Senior Developer / Java Tech Lead
BANKING AND INSURANCE
May 2022 - December 2024 (2 years and 7 months)
93100 Montreuil, France
Implementation of the application's Business layers. Development of REST web services. Development of Front-end HMIs in Angular 12. Ensuring adherence to code quality standards. Creation of the Oracle database.
Technical environment: Spring, Java, Angular Ngrx/Rxjs, Kafka, Hibernate, Oauth2, Sonar, Kubernetes, AWS, Gitlab, Docker, Sonar, Kibana, Elastic search, Git Organization:
• • Development of the Back-end with Java/Spring Boot, batch processing with Spring Batch, and the data access layer with JPA and Hibernate under a microservices architecture.
• • Ensuring adherence to the team's code quality standards (2 developers).
◦ • Code review, managing and contributing to all aspects of application development, including functional and technical specifications, design, development, and production support.
• • Implementation of the application's Business layers.
• • Development of REST web services.
• • Development of Front-end HMIs in Angular 12.
• • Ensuring adherence to code quality standards.
• • Creation of the Oracle database.
Technical environment: Spring, Java, Angular Ngrx/Rxjs, Kafka, Hibernate, Oauth2, Sonar, Kubernetes, AWS, Gitlab, Docker, Sonar, Kibana, Elastic search, Git Organization
Java Spring Docker Gitlab CI/CD Angular
Comutitres- RATP/SNCF/OPTILE
Java/JEE Developer
TRANSPORTATION
January 2021 - April 2022 (1 year and 3 months)
Paris, France
• • Gathering requirements and participating in design (Writing specifications, UML diagrams...)
• • Development of the Back-end with Java/Spring Boot, batch processing with Spring Batch, and the data access layer with JPA and Hibernate under a microservices architecture.
• • Development of complex algorithms and common components with unit tests in Java 12.
• • Ensuring adherence to code quality standards.
• • Development of REST web services.
• • Elaboration of RabbitMQ queues.
• • Creation of the PostgreSQL database.
Technical environment: Spring, Java, Angular Ngrx/Rxjs, PostgreSQL, Liquibase, RabbitMQ, Gitlab, Docker, Sonar, Kibana, Elastic search, Logstash, Git
Java Spring RabbitMQ Gitlab Docker