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Benjamin LBL

Benjamin L

Senior Fullstack Java Developer

On-demand
1 project
Argenteuil, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Benjamin

Senior Java Engineer with over 20 years of experience (since 2001), I work on technically challenging projects: migration to microservices, design of robust REST APIs, IAM/RBAC/ReBAC architecture, and modernization of legacy systems.

My core expertise: Java 11+, Spring Boot, Hibernate/JPA, and Angular on the front-end. Beyond coding, I actively take on tech lead roles: leading developer communities, disseminating best practices (clean code, DDD, testing), and technological watch.

At Datanumia, I led the migration to a microservices architecture and architected the complete IAM module (Keycloak, Zanzibar model for ReBAC). At Prima Solutions, I was the R&D lead developer for an insurance innovation platform.

Passionate about architecture and application security, I work in a hybrid mode and seek missions where technical quality and product impact truly matter.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Argenteuil (up to 50km), Paris 17e Arrondissement (up to 10km)

Experience

  • datanumia
    Senior Developer / Tech Lead
    ENERGY AND UTILITIES
    November 2019 - Today (6 years and 7 months)
    Courbevoie, France
    Participation in the digital transformation from a monolithic architecture to a microservices architecture.
    Introduction of best practices and frameworks, and architectural principles for writing microservice APIs.
    Java Spring boot Spring Hibernate Angular
  • Prima Solutions
    Senior Software Engineer / Tech Lead / Architect
    BANKING AND INSURANCE
    August 2017 - October 2019 (2 years and 2 months)
    Levallois-Perret, France
    https://www.prima-solutions.com/ Insurance Innovation Platform

    Lead developer within the product R&D team of a major insurance software publisher (P&C).
    Notably, I designed, architected, and developed as the principal developer, a generic engine for high-volume fleet contract management.

    Java 8 (streams, lambda, functional interfaces...)
    Spring 5
    API design
    Angular 4 < 5 < 6 < 7
    Legacy refactoring
    Clean code
    Scrum, Agile programming, Mob programming
    Git (Gitlab)
    java API Angular java 8 java 11 spring
  • eJust
    Senior Software Engineer
    TECH
    April 2016 - July 2017 (1 year and 4 months)
    Paris, France
    eJust is an online arbitration center that offers fast, confidential, and enforceable resolution of commercial disputes. Created by a team of lawyers and business executives, eJust was designed to overcome the limitations of the judicial system by offering an innovative, simpler solution. eJust aims to adapt the pace of justice to the pace of business by bringing the traditional arbitration process into the digital age.
    Java spring b redis AngularJS git ddd clean code java 8

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Education

  • Computer Science Engineer
    ENSIEE (ex IIE)
    2001
    École d'ingénieurs recrutent sur concours centrale supelec en 1998

Skill set

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