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William MeslardWM

William Meslard

Fullstack Software Engineer Java/Vue

€500/day
Lille, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About William

Software Engineer / Full Stack Developer 🚀

🔧 Over 4 years of experience in web development, particularly in the banking and public administration sectors.

💻 Technologies mastered:
- Languages: Java, Vue 3 (Pinia & Vitest), HTML/CSS/JS, SQL, NodeJS, Angular, JQuery
- Frameworks: Maven, Spring (M2i certified), Hibernate, JPA
- Tools: Kafka, MongoDB, Git, Jenkins, Docker, JIRA, Confluence, Sonar

🌐 With a CI/CD approach to my work, I start with design, then development, followed by testing (both frontend and backend), and finally deployment.

📦 Last mission as a freelancer for Adeo: development of a new order tracking application to replace the legacy solution.

🎓 Experience at Atos: development and maintenance of HR tools for the Ministry of National Education.

📈 Previous experience at Worldline, where I developed stock market administration websites for banks.

📚 Education:
- Engineering degree in Computer Science, Microelectronics, and Automation from Polytech'Lille (2022)
- DUT in Electrical Engineering and Industrial Computing from the University of Rennes 1 (2019)

🌎 I speak French and professional English (TOEIC: 980).

📍 Based in Lille (59800).

📆 Currently on a mission at Adeo since January 2024, I am ready to take on new challenges!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lille (up to 50km), Rennes (up to 50km)

Experience

  • LEROY MERLIN
    Front-end Expert - Fullstack Developer
    E-COMMERCE
    February 2025 - Today (1 year and 6 months)
    Lille, France
    In charge of the front-end for the energy renovation aid management application, I bring my front-end expertise to the entire energy renovation department.

    I led and carried out a complete overhaul of the application (UI and architecture), resulting in a more performant, more reliable, and easier-to-evolve solution: transition from Option API to Composition API, implementation of Vitests, SonarQube, replacement of Vuex store with Pinia stores.

    As a full-stack developer, I also work on the backend and DevOps topics.
    Vue3 Java Vitest Git Mozaic
  • Adeo
    Software Developer Consultant
    E-COMMERCE
    January 2024 - January 2025 (1 year)
    Lille, France
    As a full-stack developer at the Adeo Hub, I am involved in building a new order tracking application to replace a legacy solution. In an Agile team composed mainly of cross-functional members, there are 2 developers (one backend and myself full-stack) working full-time on the application.
    We solicit regular feedback from our pilot warehouse in Italy; communication is in English.
    Vue3 Java 22 Apache Kafka Docker Gitflow
  • ATOS
    Software Engineer
    DIGITAL AND IT
    October 2022 - Today (3 years and 9 months)
    Lille, France
    Assignment at the Lille Academy: Maintenance in Operational Condition (MCO) & application evolutions for replacing primary and secondary school teachers: technical lead for the most complex application (in terms of design and features).
    Dockerization of an application to enable its use in an integration pipeline.
    Implementation of the Agile methodology within my team.
    JavaScript Angular Gitlab Docker docker-compose Java EE JPA/Hibernate Maven Spring MVC HTML5/CSS3 Agile methodology IBM Db2 SQL Full-stack development JIRA Atlassian Confluence

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Education

  • Engineering degree in Computer Science, Microelectronics, and Automation
    Polytech'Lille
    2022

Certifications

  • Java Spring
    M2i
    2023
    Java Spring Boot

Skill set

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