Mathieu MEZIERE
C++ and C# Programmer
Gameplay • UX/UI • Technical Art
"Passionate about game development, I am a freshly-graduated game programmer specializing in UI, UX, gameplay, and technical art. Curious and detail-oriented, I enjoy finding creative solutions to enhance the player experience. I particularly appreciate art, teamwork, new challenges and good feeling experiences."

Projects
Jams / Solo projects
Art
Mathieu MEZIERE - 2026
Junkboard Rush
8 months • 2026 • 10 people + 4 outsourcers • PC
"Junk Board Rush" is a free-for-all, multiplayer battle arena for up to six players. Players enroll a hoverboarder and compete against ruthless opponents in fast-paced, chaotic matches full of spectacle and intensity.
My Contributions
Here are a few of my contributions on Junkboard Rush throughout the 8+ monthes I’ve worked on the project.
Leadership & Producing
Led dev and production: milestones, sprints, weekly Monday syncs.
Tools: Miro (boards/macro planning), Notion (task tracking), Discord (comms).
8-month cycle, monthly jury reviews, investor-pitch style deliverables.
Retro-planned against fixed dates, re-prioritized when scope had to shrink.
Owned data-driven GD and 3C features; mechanics and architecture decided collectively.
Built multiplayer networking on the fly, in parallel with leadership duties.
3C & Controller Systems
Built data-driven architecture for controller, camera, player states, and character parameters.
Owned controller logic up through the network layer, via Unreal's CMC saved-moves pattern.
Learned Unreal's multiplayer quirks on the fly, within the 8-month timeline.
Pair-programmed controller/camera features live with a Game Designer, as a recurring workflow.
Extended CMC saved-moves to drive speed sources, boosts, and grind rails alongside the camera.
Organized the architecture around tunable variables for tech animation and game feel iteration.
Gameplay & Level Features
Owned gameplay/LD features: rails, ramps, boost pads, plus tooling for faster LD iteration.
Rails: Sonic-inspired grinding feel, custom CMC network state with reconciliation and client-prediction.
Boost pads: tricky to balance inside the controller, pushed with heavy pre-testing.
LD tools: BP prefabs, data structures for metrics, visualization tools for level elements.
Designed in-game render screens for Level Art, later scrapped for time reasons.
Networking (Gameplay Side)
Backend/replication owned by a teammate; my scope was gameplay networking.
Kept boost pads, ramps, rail grinding, tricks, nitro, bumpers consistent and feeling good in multiplayer, extending the 3C work in parallel with my coworker.
Synced gameplay state through the CMC's replicated moves, keeping controller feel authoritative across clients.
Main challenge: fast-paced, feel-driven gameplay made consistent feel across clients hard, multiplayer was a lesson learned the hard way.
User Experience & User Interface
Implemented the full UI: menus, animations, polish, and shaders from the artists' concepts.
Built the networked HUD: bugfixed, shader-driven, animated, tuned for readability.
Highlight: a dynamic killfeed system, Overwatch-style, adapting to the situation instead of a static log.
Joined UX meetings and feedback sessions, running playtests for readability and gameplay integrity.
Directed all the UI production, from concepts to in-game integration, supervision or self-integration.
Technical Art & Animation
Handled in-game animation for character and board: procedural rigging to full Animation Blueprint logic.
Built a foot control rig for procedural board-foot animation, plus semi-procedural board animation.
Implemented trick and combo animations, the Animation Blueprint, and all underlying animation logic.
Tuned blending, pose transitions, and responsiveness; built an automatic system for contextual animations based on gameplay state.
Made shaders for in-game screens and master materials for interfaces.
R&D on a post-process comic-style shader.
Handled optimization, render cheats, and tweaks.
Team & Credits
Game Programmers
Mathieu MEZIERE
Audran PAVOT
Game Designers
Anatole MAROTINE
Félix SUN
Yannis Zenaïdi
Game Artists
Thaïs DESCAMPS
Julia IONAS
Zeyu RONG
Thomas HOESTLANDT
Stéphane KOKOU ATOKOU
Sound Designers
Guillaume Hoarau
Emilien Miloch
Gauvain Wattelet
Special Thanks
Nolwenn Barthélémy
Butch Mc Cain
All our playtesters
Mathieu MEZIERE - 2026
Out of Stock!
4 months • 2025 • 14 people • PC
"Out Of Stock!" is a multiplayer party game where you and your friends play as supermarket clerks. Your goal? Satisfy customers by completing tasks as efficiently as possible, whether through cooperation, or not...
My Contributions
Here are a few of my contributions on Out of Stock! throughout the 4+ monthes I’ve worked on the project.
Leadership & Producing
Lead Programmer: defined milestones, broke features into tasks, estimated workload, distributed work.
Tracked progress, kept the codebase clean as much as possible, adjusted planning as needed.
Managed a teammate working remotely from Singapore despite the time difference, improving comms and documentation.
First multiplayer project in Unity, built from scratch under a tight timeframe; local version solid, multiplayer stability fell short of expectations despite strong effort.
User Experience & User Interface
Handled responsive layouts, cleaned up logic, improved overall usability.
Implemented and polished animations for feedback and feel.
Tuned colors, readability, and interactions for clarity and "juice".
Adapted artists' UI concepts to match the game's cartoonish 70's style: bounce, energy, personality.
Technical Art
Owned art pipeline integration: VFX, animations, shaders, and gameplay-responsive procedural materials.
Built a fully paintable dirt system for market environments, real-time and synced across multiplayer clients.
Developed tools and gizmos for Game Designers to edit features easily.
Optimized the system for performance while keeping it responsive and stable networked.
Gameplay & Network
Gameplay programming for side features, animation systems, and networked them across clients.
Used animation, shaders and tweens to polish prog-driven Level Design elements.
Implemented Steam achievements.
Prizes
Out of Stock! has been recognized with the following international awards:
Team & Credits
Game Programmers
Mathieu MEZIERE
Aloïs TUPINON
Pierre FERRARI
Thomas DRUESNE
Game Designers
Thomas MOTTET
Anatole MAROTINE
Enzo FERREIRA DE ALMEIDA
Maxime PAWELSKI
Game Artists
Clara PROVILLE
Lucky COQUANT
Marine TEZENAS DU MONTCEL
Amélie DEL NEGRO
Juliette BLONDEL
Sound Designers
Eliot TRANSON
Thomas MOTTET
Special Thanks
All our playtesters
Mathieu MEZIERE - 2026
Out Of Stock! Demo
2 months • 2025 • 10 people • PC
"Out Of Stock!" is a local multiplayer party game where you and your friends play as supermarket clerks. Your goal? Satisfy customers by completing tasks as efficiently as possible—whether through cooperation, or not...
My Contributions
Here are a few of my contributions on Out of Stock! Demo throughout the 2 monthes I’ve worked on the project.
Leadership & Producing
Lead Programmer: defined milestones, broke features into tasks, estimated workload, distributed work.
Tracked progress, kept the codebase clean as much as possible, adjusted planning as needed.
Managed a teammate, especially for comms on fast-iteration features, or as a mediator between Designers or Artists.
First local multiplayer project in Unity, built from scratch under a really tight timeframe; with customisation and demanding polish level.
Ran playtests targeting visual clarity and readability.
Gameplay & Level Design
Contributed to some secondary level-side gameplay features.
Contributed to some secondary player-side gameplay features.
Worked on AI-related gameplay elements.
AI & Non-playable characters
Implemented NavMesh-based pathfinding with custom rules and behaviors.
Built state machines driving AI decision-making.
Built a semi-procedural visual generation for NPC variety.
User Experience & User Interface
Owned the full UI/UX scope: menus, interfaces, in-game UI, HUD.
Built UI animations and shaders for interface polish.
Handled UI compositions, assembling interface elements into cohesive screens.
Polished interface via shaders for visual consistency.
Technical Art
Built animation systems: playback logic and transitions between states.
Created polished and dynamic gameplay shaders reacting to gameplay state and fine detail.
Integrated art assets and customization assets into gameplay.
Team & Credits
Game Programmers
Mathieu MEZIERE
Victor REGARD
Game Designers
Thomas MOTTET
Anatole MAROTINE
Enzo FERREIRA DE ALMEIDA
Game Artists
Clara PROVILLE
Lucky COQUANT
Marine TEZENAS DU MONTCEL
Amélie DEL NEGRO
Juliette BLONDEL
Sound Designers
Thomas MOTTET
Anatole MAROTINE
Special Thanks
All our playtesters
Mathieu MEZIERE - 2026
Salmaris
4 months • 2024 • 12 people • PC
WARNING : This section is currently under work
"Salmaris" is a solo first-person shooter where you face numerous creatures in the middle of the desert. Your goal? Find water to keep your plants alive; that's very important.
My Contributions
Here are a few of my contributions on Salmaris throughout the 4 monthes I’ve worked on the project.
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Team & Credits
Game Programmers
Mathieu MEZIERE
Aloïs TUPINON
Game Designers
Guillaume LUTUN
Lana REN
Aman SINGH
Luc CARRANT
Game Artists
Ged LOEWENGUTH
Thaïs DELSOL
Pauline AGOSTINI
Jean-Fabrice BLANC
Léontine LORRILLIERE
Stéphane KOKOU ATOKOU
Sound Designer
Luc CARRANT
Special Thanks
All our playtesters
Mathieu MEZIERE - 2026
Donjon et Carton
2 months • 2023 • 8 people • Mobile
WARNING : This section is currently under work
"Donjon et Carton" is a roguelite mobile game based on paper and cardboard, where you need to defeat the boss of the dark dungeon. Confetti and glitter are your best win conditions.
My Contributions
Here are a few of my contributions on Salmaris throughout the 2 monthes I’ve worked on the project.
Sample Section Text
Sample text • Sample text • Sample text
Team & Credits
Game Programmers
Mathieu MEZIERE
Victor REGARD
Game Designers
Noé BRASIER
Marie VALLÉE
Liz GUILBERT
Martin SKUTNIK
Game Artist
Mathieu MEZIERE
Sound Designers
Noé BRASIER
Marie VALLÉE
Special Thanks
All our playtesters
Mathieu MEZIERE - 2026













