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Julien G.JG

Julien G.

Fullstack Dev (Java, React Native, Angular, React)

€600/day
Nantes, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Julien

Performance and simplicity-oriented software engineer, I design robust and scalable systems, built to last. I structure clean and maintainable technical foundations, prioritizing pragmatic, effective solutions aligned with product goals.

Accustomed to making structuring technical decisions, I guide teams in architectural choices, development best practices, and the implementation of quality standards. I act both as a technical contributor and a reference, with a strong ability to transmit knowledge, simplify complex concepts, and upskill teams.

I place particular importance on system performance, scalability, and robustness. Automated tests, rigorous code reviews, and CI/CD pipelines are integral to my working method. My goal is to create healthy technical environments where code quality supports product speed and reliability.
  • English

    Fluent

  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Wegrow
    Lead Tech Front - Angular | Architecture & Product
    SOCIAL NETWORKS
    April 2022 - Today (4 years and 4 months)
    • Front Tech Lead
    • Advanced expertise in scalable architectures.
    • Strong command of TypeScript and Angular.
    • Focus on performance and quality (testing, standards).
    • Design of a design system (atomic).
    • Product-oriented technical steering (UX, performance, business value).
    • Team support and upskilling.
    • Fullstack vision with Spring Boot / Java for coherent API and architecture choices.
    Java Typescript Angular Webdesign Spring boot
  • NICKEL
    Fullstack Mobile Developer - React Native / Java
    BANKING AND INSURANCE
    October 2020 - April 2022 (1 year and 6 months)
    Nantes, France
    • Development of the Nickel mobile application.
    • Contribution to graphic redesign and user experience improvement.
    • Development of mobile features in React Native.
    • Design and evolution of backend APIs in Java (architecture, endpoints, business logic).
    • Optimization of front/back communication (performance, reliability, error handling).
    • Contribution to overall product quality (testing, robustness, data consistency).
    React Native React.js Java External API Integration Web Development
  • Key Consulting
    Software Engineer
    DIGITAL AND IT
    September 2017 - October 2020 (3 years and 1 month)
    Nantes, France
    Client 1: FIVA - Asbestos Victims Compensation Fund
    Project 1: Digitization of compensation claim forms.

    Client 2: GODF
    Project 2: Complete redesign of the web application.

    Client 3: ARS IDF - Ile-de-France Regional Health Agency
    Project 3: Digitization of intern position selection.
    Angular Java Spring boot PostgreSQL Fullstack

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Education

  • Master's in Computer Networks and Security
    University of Caen
    2015
  • DUT in Computer Science
    IUT du Havre
    2011

Skill set

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