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Lucien H.LH

Lucien H.

Senior React Developer - Real-time (chat, live)

€550/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Lucien

I help teams deliver faster and stabilize their web applications, especially on projects with real-time features (chat, live, streaming).

Frequent interventions:
  • Unblocking delayed projects
  • Bug and performance issue resolution
  • Technical debt reduction
  • Team reinforcement
Some projects presented are from agency missions (respecting confidentiality constraints).
Other examples can be shared during a discussion.

I would be delighted to discuss your project with you
  • French

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • MEDIACTIVE GROUP
    Fullstack Web Developer (React)
    FASHION AND COSMETICS
    March 2025 - Today (1 year and 3 months)
    Paris, France
    Full-Stack Developer on a real-time web platform (Front-Office + Back-Office in React, API in PHP Laravel) focused on live events: video streaming (Blastream, YouTube, Twitch), chat, and synchronized interactions.

    I developed the video player and live dressing features (overlays), including a real-time reaction system ("moods"). I also designed the Photowall/MediaWall: media addition and moderation, instant updates via Pusher, and live embedding in the player to enhance the live experience.

    Key points / skills:
    • Full-Stack: React (Front/Back-Office) + Laravel API (endpoints, validations, business logic)
    • Video streaming: Blastream integration + YouTube/Twitch support (multi-source)
    • Player: event management (ready/error, play/pause, fullscreen, quality) + overlays
    • Real-time: Pusher (live events), multi-client synchronization
    • Live interactivity: moods (real-time reactions)
    • Photowall / MediaWall (completed): content addition/editing/deletion, moderation, real-time, stream feed embedding
    Full-stack Development React.js Front-End Development Pusher live streaming
  • Freelance
    Full Stack Web Developer
    EDUCATION AND E-LEARNING
    June 2020 - Today (6 years)
    Paris, France
    Development of various projects as a freelancer, mainly focused on creating and integrating full-stack web solutions, with a focus on React and other front-end and backend technologies.

    **Open-source (in progress)**: Development of a JavaScript cookie management plugin compatible with several frameworks (React, Vue, Svelte, etc.), inspired by Tarteaucitron, offering a lightweight and customizable solution for privacy management.
    React.js Vue.js NPM Monorepo Open Source
  • Skill and You
    Full Stack Developer (Wordpress custom) / Lead Developer
    EDUCATION AND E-LEARNING
    January 2021 - August 2024 (3 years and 8 months)
    Montrouge, France
    Development of a Wordpress multisite (site factory), including:

    - Custom Wordpress plugins
    - A modular front-end, with custom theme management including a PHP/Javascript override system
    - A stack combining Wordpress with the latest web tools including React.js and Webpack 5
    - Multiple continuous improvements to maximize site speed and responsiveness.

    In this role, I was the technical lead for the web team, constantly requiring me to think about and design technical solutions adapted to the team's and company's resources.

    ...
    Wordpress Development Back-End Development JavaScript React.js Google AdWords

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Education

  • Multimedia Project Manager, DTP, Web, Video
    IESA multimedia
    2017
    Chef de Projet Multimédia, PAO, Web, Vidéo
  • Scientific Baccalaureate
    Lycée Jean-Paul II
    2014
    BAC Scientifique

Skill set

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