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Julien SebagJS

Julien Sebag

UX Engineer

€650/day
Amsterdam, NL
3-7 years

Average response time: 1 hour

About Julien

👨‍💻 After working two years as a Product Designer at Nielsen in Warsaw, and one year as Design Engineer / Front End Developer at wibas etarate in Hamburg, I decided to switch my career to become a UX engineer. Now, I have seven years of experience in front end development and design.

💡 Currently, I am working as Senior Front End Developer @ GIE G5 Languedoc

💼 Through my studies, bootcamps in UX / UI Design, Web Development and AI Engineering, MSc in Creative Technology, and Masters in Marketing and Advertising, I have gained skills in user research, UI and UX design, development languages, AI and LLMs. My current position is Senior Front End Engineer @ GIE G5 Languedoc in Nîmes (FR), working on the website Parasanté online.

🗣 I am fluent in French and English.

🖥 I am technically proficient in: HTML | SCSS | JS | React | TS | Git | Github | Figma | Node.js | Express | MongoDB, and have knowledge in: Python | Flask | SQLite | Handlebars | Liquid | Webflow | Adobe suite.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Amsterdam (up to 15km), Rotterdam (up to 15km), The Hague (up to 15km)

Experience

  • Prospekto
    Senior Front end developer
    December 2025 - December 2025
    Redesign and development of the marketing website for Prospekto app, an AI platform to analyse documents.
    React.js Next.js TailwindCSS Posthog Typescript
  • GIE G5 Languedoc
    Senior Front end developer
    MEDICAL
    January 2025 - Today (1 year and 5 months)
    Amsterdam, Netherlands
    Development of a CMS in React to replace a WordPress solution for the website Parasanté Online, to create a solution tailored to their needs, and reducing loading times by 15%.
    React.js TailwindCSS
  • Marmalade
    Senior Front end developer
    DIGITAL AND IT
    February 2024 - July 2024 (5 months)
    Berlin, Germany
    Front end development of products owned by the agency, working mainly with React and Next.js.
    Front end development for several clients of the agency, working mainly with Angular.
    Next.js React.js JavaScript Typescript Angular

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Education

  • Web development bootcamp
    Ironhack
    2021
    Bootcamp focused on MERN stack. Projects: JavaScript game, event app, artists booking app
  • MSc Creative Technology
    Middlesex University
    2017
    Final project: Mobile application and website for real estate, helping people to find easily a place to live.

Skill set (16)

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