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I am Sylvain Liagre, a C# / Unity developer with 14 years of experience in creating real-time 3D applications for PC, VR, mobile, and the Web. My dual background in development and 2D/3D graphics allows me to handle a project from end to end, from requirements definition and software architecture to development, asset creation, and support during delivery. I design robust, optimized, and sustainable systems, with particular attention to performance, code clarity, and visual quality. I also enjoy developing Unity Editor tools and automation solutions to reduce production time and improve the consistency of deliverables. My rigor, proactivity, and team-oriented mindset enable me to collaborate effectively within multidisciplinary teams (3D artists, developers, freelancers) and to anticipate technical and functional needs. I have contributed to large-scale projects such as the Grand Paris Express and bids for the Paris 2024 Olympic Games.…I am Sylvain Liagre, a C# / Unity developer with 14 years of experience in creating real-time 3D applications for PC, VR, mobile, and the Web. My dual background in development and 2D/3D graphics allows me to handle a project from end to end, from requirements definition and software architecture to development, asset creation, and support during delivery. I design robust, optimized, and sustainable systems, with particular attention to performance, code clarity, and visual quality. I also enjoy developing Unity Editor tools and automation solutions to reduce production time and improve the consistency of deliverables. My rigor, proactivity, and team-oriented mindset enable me to collaborate effectively within multidisciplinary teams (3D artists, developers, freelancers) and to anticipate technical and functional needs. I have contributed to large-scale projects such as the Grand Paris Express and bids for the Paris 2024 Olympic Games.

Sylvain Liagre

Game Developer, 3D Designer, 3D Modeler, +7

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I am Sylvain Liagre, a C# / Unity developer with 14 years of experience in creating real-time 3D applications for PC, VR, mobile, and the Web. My dual background in development and 2D/3D graphics allows me to handle a project from end to end, from requirements definition and software architecture to development, asset creation, and support during delivery. I design robust, optimized, and sustainable systems, with particular attention to performance, code clarity, and visual quality. I also enjoy developing Unity Editor tools and automation solutions to reduce production time and improve the consistency of deliverables. My rigor, proactivity, and team-oriented mindset enable me to collaborate effectively within multidisciplinary teams (3D artists, developers, freelancers) and to anticipate technical and functional needs. I have contributed to large-scale projects such as the Grand Paris Express and bids for the Paris 2024 Olympic Games.…I am Sylvain Liagre, a C# / Unity developer with 14 years of experience in creating real-time 3D applications for PC, VR, mobile, and the Web. My dual background in development and 2D/3D graphics allows me to handle a project from end to end, from requirements definition and software architecture to development, asset creation, and support during delivery. I design robust, optimized, and sustainable systems, with particular attention to performance, code clarity, and visual quality. I also enjoy developing Unity Editor tools and automation solutions to reduce production time and improve the consistency of deliverables. My rigor, proactivity, and team-oriented mindset enable me to collaborate effectively within multidisciplinary teams (3D artists, developers, freelancers) and to anticipate technical and functional needs. I have contributed to large-scale projects such as the Grand Paris Express and bids for the Paris 2024 Olympic Games.

Available to hire

I am Sylvain Liagre, a C# / Unity developer with 14 years of experience in creating real-time 3D applications for PC, VR, mobile, and the Web. My dual background in development and 2D/3D graphics allows me to handle a project from end to end, from requirements definition and software architecture to development, asset creation, and support during delivery.

I design robust, optimized, and sustainable systems, with particular attention to performance, code clarity, and visual quality. I also enjoy developing Unity Editor tools and automation solutions to reduce production time and improve the consistency of deliverables.

My rigor, proactivity, and team-oriented mindset enable me to collaborate effectively within multidisciplinary teams (3D artists, developers, freelancers) and to anticipate technical and functional needs. I have contributed to large-scale projects such as the Grand Paris Express and bids for the Paris 2024 Olympic Games.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Spanish; Castilian

Beginner

Work Experience

3D Application Creator (Freelance) at Freelance

January 1, 2022 - November 12, 2025

Development of interactive and immersive Unity 3D applications for VR and desktop; 3D video UX interpretation by analyzing data from a 3D camera to reconstruct movements in real time; real-time tracking and visualization using sensor-equipped objects; creation of Unity Editor tools to accelerate production (procedural generation, workflow automation); significant production time reduction; performance optimization and multi-platform deployment; applying SOLID, KISS, DRY and design patterns (Singleton, Observer, separation of concerns).

C# Unity Developer / 3D Infographiste at Vectuel

December 31, 2022 - December 31, 2022

Development of interactive 3D applications for decision support, public consultations, and commercial presentations in urban planning, architecture and major project communications. Maintained and evolved an internal Unity layer (VStory), adapting to new Unity versions and adding production-focused features. Built Unity Editor extensions (procedural placement, external data integration, workflow automation) to dramatically reduce production time. Focused on performance optimization and cross-platform deployment. Applied SOLID, KISS, DRY principles and common design patterns.

C# Unity Developer / Real-Time 3D Infographiste at InSitua

December 31, 2016 - December 31, 2016

End-to-end production of multimedia 3D projects for architecture, urban planning and territorial development; planning inputs to final delivery. Created 3D models, images, videos, LMS promotions and photomontages. Demonstrated technical versatility and artistic eye to deliver tailored interactive and graphical assets; managed client relations and project delivery.

Créateur D'application 3D Freelance at Freelance

January 1, 2022 - Present

Développement d'applications interactives et immersives sur Unity 3D pour la VR et le desktop. Interprétation de UX vidéo 3D et analyse de données d'une caméra 3D pour reconstruire et exploiter les mouvements en temps réel. Tracking devices & visualization avec récupération continue des données et pointeurs 3D synchronisés avec les positions réelles. Outils techniques : création d'outils Unity Editor pour accélérer la production (génération procédurale, automatisation de workflows). Optimisation et déploiement multiplateformes. Application des principes SOLID, KISS, DRY et design patterns (Singleton, Observer, séparation logique).

Développeur C# / Infographiste 3D at Vectuel

January 1, 2016 - December 31, 2022

Développement d'applications 3D interactives pour l'aide à la prise de décision, les concertations publiques et la présentation commerciale dans le cadre de projets d'urbanisme, d'architecture et de communication. Surcouche Unity interne (VStory) et maintenance du framework maison, adaptation aux nouvelles versions de Unity et ajout de fonctionnalités dédiées à la production. Outils Unity Editor & automatisation : extensions personnalisées (placement procédural, intégration de données externes, automatisation de workflows) permettant une réduction significative du temps de production.

Développeur C# Unity / Infographiste 3D Temps Réel at InSitua

January 1, 2011 - December 31, 2016

Réalisation complète de projets multimédia 3D temps réel pour l'architecture, l'urbanisme et l'aménagement du territoire, de la réception des plans à la livraison finale. Production multimédia de A à Z: maquettes 3D, images de synthèse, vidéos, LMS promotionnels et photomontages. Polyvalence technique & artistique et gestion de projet/client: interaction client et adaptation des livrables aux usages (concertations publiques, communication commerciale, aide à la décision).