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Joachim LejeuneJL

Joachim Lejeune

Full Stack Developer

€600/day
Namur, BE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Joachim

Full Stack Java / Vue.js Developer — I transform your business needs into applications that run in production.

You have a web project to launch, a critical feature to deliver, or a codebase to evolve? I handle the entire cycle: from technical design to production deployment, including testing and maintenance.
For nearly 2 years at Actia Telematics Services, I worked on a SaaS platform for mobile fleet digitalization — real-time data integration, geospatial visualization, dynamic Excel report generation, SMS infrastructure deployment. Concrete deliverables, in an Agile context, with real production constraints.
My stack: Spring Boot · Python · Apache Kafka · Vue.js · PostgreSQL · Docker · CI/CD · Git
What you gain by working with me:

An autonomous and solution-oriented developer, no need for micromanagement
A profile that understands field and business constraints, not just code
Clear communication with non-technical stakeholders

My atypical career path — career change after 8 years in another sector, returning to studies at 32, graduated in 2022 — says something about who I am: someone who fully commits to what they do, and who knows what it's like to deliver under pressure.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Actia telematics
    Full Stack Developer
    INTERNET OF THINGS (IOT)
    February 2023 - September 2024 (1 year and 7 months)
    Namur, Belgium
    › Development of features on the MyActia SaaS platform, covering Spring Boot, Apache Kafka, OpenAPI (backend) and Vue.js (frontend).
    › Involvement in monolithic, microservices, and hybrid architectures, contributing to the platform's technical evolution.
    › Implementation and maintenance of GitLab CI/CD pipelines for automating builds, tests, and deployments.
    › Writing unit and integration tests as part of the standard development workflow.
    › Containerization of services with Docker to ensure deployment consistency across environments.
    › Direct collaboration with business analysts to translate functional requirements into technical solutions.
    Java Spring Boot PostgreSQL Vue.js Docker Mockito
  • IFAPME
    Teacher
    EDUCATION AND E-LEARNING
    September 2025 - Today (11 months)
    Dinant, Belgium
    › Teaching Node.js, REST APIs, and full-stack web development concepts as part of an UX/UI design training program.
    › Project-based approach with an adult audience, bridging the gap between theory and professional practice.
    Node.js
  • Pierret Sa
    Full Stack Developer
    LOGISTICS AND SUPPLY CHAIN
    February 2025 - Today (1 year and 6 months)
    Bertrix, Belgium
    › Design and development of operator interfaces for an industrial production management system.
    › Development of backend components integrated as modules into the factory's desktop application.
    › Development and maintenance of REST and mobile APIs consumed by internal tools and Android applications.
    › Work in a critical real-time industrial environment, subject to high reliability requirements.
    MySQL WINDEV Android

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Education

  • Bachelor's degree in Management Information Systems
    Hénallux
    2022
    analyste programmeur

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