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Benjamin MetayerBM

Benjamin Metayer

Supermalter

Unity 3D | XR Developer. Virtual Reality

€600/day
99 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Benjamin

Unity Developer: 99 projects, 49 reviews 5/5.

I design immersive and interactive experiences in Unity: virtual reality, augmented reality, serious games, 3D configurators, digital twins, and 3D mobile applications. From training (immersive learning) to events, including industrial and consumer applications, I cover the entire chain, from technical scoping to deployment.

Trusted by: Sanofi, Saint-Gobain, Octapharma, Pierre Fabre, Metso.

Training (AR / VR / Serious Game)
I design immersive modules for learning gestures, processes, or risky situations, with a focus on realism, feedback, and progression.
Typical deliverables: interactive simulation, scoring, guided tutorials, training/evaluation modes, deployment on your headset fleet (multi-brand, Meta Quest) and/or PCVR.

Events (trade shows, launches, internal events)
I develop stable and fluid "wow" experiences, designed for intensive use on stands: quick startup, obvious UX, robustness, offline mode, automatic reset, remote control if necessary.
On mobile, I create augmented reality experiences (iOS/Android) adapted for activations: product presentation, augmented tours, AR mini-games.

Industrial & Consumer
3D configurators, explorable digital twins, professional simulators, data visualization, and 3D mobile applications (iOS/Android, WebGL). Interactive tools to sell, train, explain, or manage.

Tech Stack
C#, .NET, VR interactions (XR), ARKit / ARCore, Shaders, performance optimization (profiling), Git.

Working Method
Scoping (educational objective or activation objective, hardware/location constraints), rapid MVP, short iterations with testable deliverables, then stabilization/optimization before production.

Let's talk about your project
Describe your needs and context, and I'll get back to you with an initial approach.
  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Paris (up to 50km), Chambéry (up to 50km), Lyon (up to 50km), Grenoble (up to 50km)

Experience

  • AFDAS
    Malt logoOn Malt
    Unity VR / XR Developer
    SOFTWARE PUBLISHING
    February 2026 - February 2026
    Evolution of a Virtual Reality training experience developed on Unity 3D for Meta Quest headsets.
    After an initial mission dedicated to creating the VR experience, this second mission focused on making modifications and adding new features to evolve the already-in-production application.
    Work performed:
    • Added new VR interactions and training modules.
    • Improved ergonomics and visual comfort for prolonged headset use.
    • Optimized performance on Meta Quest (profiling, fluidity, stability).
    • Evolved real-time communication with the trainer's tablet application.
    Stack: Unity 3D, C#, XR development (Virtual Reality), Meta Quest, performance optimization.
    Unity 3D AR/VR XR VR Virtual Reality
  • DLP LMS Group
    Malt logoOn Malt
    Unity VR Developer - Project Manager
    EDUCATION AND E-LEARNING
    October 2025 - February 2026 (4 months)
    For a Parisian amusement park.
    Creation of a virtual reality training experience on Unity 3D for Meta Quest 3.

    Design and development of an immersive VR application dedicated to training, integrating hand tracking and controller use for fluid and natural interaction.

    Implementation of real-time communication with a tablet application for the trainer, allowing learner monitoring, control of training steps, and triggering of events within the VR experience.

    Optimization and testing on Quest 3 to ensure fluidity, visual comfort, and cross-platform compatibility.
    Unity 3D VR Multiplayer Unity Developer
  • FB Curves
    Complete Overhaul of an Android/iOS/Web Application
    VIDEO GAMES AND ANIMATION
    July 2025 - January 2026 (6 months)
    Paris, France

    Context

    Gymnastics application for professional and amateur athletes. After several years of chaotic development and a succession of developers, the codebase had become unstable, unmaintainable, and blocked any further evolution.

    Mission

    Complete Reconstruction from Scratch

    Strategic decision to completely rebuild the application to establish solid foundations. Migration to Unity 6 with URP to optimize mobile performance, modular and maintainable architecture, reproduction of all existing features while fixing critical bugs.

    Dynamic Content System

    Major issue: the application contains hundreds of 3D animations requiring frequent updates. Each modification demanded a new store submission with a 7-10 day validation delay.

    Solution implemented:

    • Dynamic download system via remote server (supports .fbx and .glb)
    • Asynchronous loading and optimized memory management
    • Real-time updates (animations, exercises, 3D models) without going through the stores
    • Deployment time reduced from several days to a few minutes

    Additional Features

    • Multilingual localization (Unity Localization)
    • In-app purchases and Premium subscriptions (Unity Purchasing)
    • Server synchronization for license validation

    Technical Stack

    • Unity 6 (URP) • C# • Addressables • Animation Rigging • REST API • Unity Purchasing • Cinemachine • iOS/Android/Web Publishing

    Results
    ✅ Stable application on all devices
    ✅ Content update: 7-10 days → few minutes
    ✅ Scalable architecture for new features
    ✅ Maintenance costs reduced by 3
    ✅ Client autonomous with no technical skills required
    Unity 3D Unity Animation Mobile Application IAP API

Reviews

5.0

Out of 49 ratings

S

Sarah

Tilak Healthcare

Reviewed on 7/15/2024

Very good experience with this first mission. Benjamin and his team met our needs and were accommodating, proactive, and resourceful.
N

Nicolas

VIA AUDIT

Reviewed on 2/28/2024

Benjamin and his studio Snack Interactive provided excellent advice on this mission. Very high quality of execution and deadlines met. I would hire them again without hesitation.

Recommendations

HN
OF
Sebastien L.SL
+5
Hel Nomagitial and 7 other people have recommended Benjamin

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Education

  • Electrotechnics Baccalaureate
    Lycée Professionnel Les Frères Moreau
    2016
    - Lecture des schémas électriques - Réparation d'armoires électriques
  • Developer
    Epitech
    2018
    Je n'ai pas fini la formation à Epitech. Après avoir appris les bases de la programmation, j'ai voulu m'orienter tout de suite vers ce qui me plaisait, les jeux vidéos. Je me suis donc formé en autodidacte pendant plus d'un an avant de me lancer en Freelance. Cela fait plus de 5 ans maintenant que je suis développeur freelance et réalise vos projets pour vous donner satisfaction.

Certifications

  • Unity
    Unity
    2018
    C# 3D 2D Unity Unity 3D Video Games Microsoft Visual Studio Training Video Game

Skill set

Categories