Freelancer profile translated to English.
Back to original languageAbout Guillaume
VR/XR DeveloperonUnreal Engine5, I act as a technical partner when a project requires reliable interactions, a strong sense of presence, and stable performance in the headset.
Experienced and autonomous to successfully carry out various projects:
- Demo polish. B2B prototype. Production reinforcement.
- Training. Marketing. Visualization. Virtual Production.
- Serious game, video game, or application.
- Advanced VR interactions (object manipulation, physics-based feedback, diegetic UI, spatial UI, VR UX patterns, onboarding)
- Stable demo builds
- VR Optimization (CPU/GPU, draw calls, LODs, lighting, streaming, profiling)
- Clear organization and mastered delivery (from design to deployment)
I master Unreal Engine 5 workflows (Blueprint, C++), OpenXR, and common XR constraints.
I can work on standalone projects (Meta Quest type) and PCVR (depending on the target platform).
- 10+ years in software engineering.
- Creation of complex applications.
- Clean code and documentation.
- DevOps, modularity, and maintainability.
I can join your team or manage the entire production, mobilizing freelancers from my network if needed (3D, sound, UI, etc.).
We can start with a 1st Prototype (2 to 6 weeks):
- Validate a concept quickly
- A playable build + a short demo video
- Clear scope and success criteria
We will define success metrics upstream, as I work with a results-oriented logic (ready demo, stability, completion of the journey, adoption).
- Unreal Engine 5 (UE5)
- VR / XR / AR / MR
- Blueprint / C++
- Performance Optimization
- UMG / UI
- Feedback
- Physics Interactions
- Niagara VFX
- Debug and Delivery
I can handle complex IT scenarios thanks to my experience in application development:
- Azure / .NET / Angular / Docker
French
Native or bilingual
English
Fluent
Italian
Basic
Can work on-site
Nantes (up to 10km)
Experience
- ENI ÉcoleVR Cybersecurity Training Module (Unreal Engine 5 - Blueprint & C++)EDUCATION AND E-LEARNINGMarch 2026 - March 2026Nantes, FranceDevelopment of a VR training POC in the field of cybersecurity, presented at an event organized by ENI.My contributions:
- Design and development under Unreal Engine 5 of an interactive journey (scenario, steps, dialogues, user feedback)
- Implementation of VR interactions (manipulation, immersive UI, onboarding, guidance) and 3D visualization (models, VFX, animation sequences)
- Production of a playable demonstration prototype
- Optimization for smooth execution (performance, stability)
- Booth presentation at the ENI TECH FEST trade show
- ENI ServiceDevelopment of an application for tracking certification testsEDUCATION AND E-LEARNINGAugust 2021 - July 2022 (10 months)Saint-Herblain, FranceArchitecture, design, development, and deployment of a web application for tracking and automating certification tests for ENI and its clients. The group's first full cloud-hosted application.Use of web services to interface with IT system applications and e-surveillance software.Implementation of Docker and Azure DevOps tools.Implementation of continuous deployment in the cloud with Azure Pipeline, Azure Linux web app for containers.Authentication and roles via Azure AD B2C, Azure function, Azure shell. Database via Azure Database.Angular 13 / .Net core 6 / MS Sql Server 19 / Microsoft Azure
- Mineo GamesUnreal Engine 5 Expert - Immersive Applications, Video Games, VR TrainingVIDEO GAMES AND ANIMATIONJuly 2020 - Today (6 years and 1 month)Nantes, FranceI develop VR/XR experiences using Unreal Engine 5, specializing in reliable interactions and stable execution.Freelance activity:- B2B Prototypes (training, simulation, demonstrators)- VR Interaction Systems (manipulation, spatial UI, onboarding, feedback)- Optimization and Stability (profiling, performance, demo builds, packaging)- Scoped Delivery (scope, milestones, build notes, handover)- Jury member for a Video Game SchoolSkills: Unreal Engine 5, VR/XR, OpenXR, Meta Quest, PCVR, Blueprint, C++, UMG, performance.
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Education
- Software Engineering Engineering DegreeIMT Atlantique2015Filière Ingénieurie Logicielle par apprentissage. Maîtrise des dernières technologies en développement logiciel et web, et management des organisations.
- DUT GEIIIUT GEII of Tours2012Diplôme de technicien supérieur avec formation dans les domaines de l'informatique industrielle, électronique, électrotechnique, l'automatique...