Sébastien Crozet
Co-founder And CTO at Foresight Mining Software Corporation
Maulette, Île-de-France, France
Summary
🤩
Rockstar🎓
Top SchoolSébastien Crozet is a founder and CTO with 13 years of experience specializing in physics engines, collision detection and high-performance Rust systems. He leads Dimforge and serves as CTO at Foresight Spatial Labs, combining product leadership with deep hands-on R&D. His background includes a PhD-level thesis and research at CEA on efficient contact determination for B‑Rep solids, informing his pragmatic contributions to open-source physics libraries like rapier, parry and nalgebra. A prolific backend developer, he has fixed low-level memory and constraint-resolution bugs, refactored collision algorithms for edge cases, and modernized GLFW Rust bindings for current compilers. Based in Île‑de‑France, he blends academic rigor with startup execution and a taste for improving code clarity and maintainability across complex geometric and physics codebases. Notably, his work often focuses on subtle correctness and performance corners that silently improve robustness in real-time simulations.
13 years of coding experience
5 years of employment as a software developer
EPITA: Ecole d'Ingénieurs en InformatiqueStaffordshire University
Stackoverflow
46reputation
462reached
1answer
1question
Github Skills (37)
simulation10
code-optimization10
physics-engine10
algorithms10
c-language10
matrix10
geometry10
game-engine10
simulator10
api-design10
physx10
game-dev10
glfw10
simulations10
collision-detection10
Programming languages (11)
Github contributions (5)
dimforge/parry
Dec 2020 - Jan 2023
2D and 3D collision-detection library for Rust.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:75 reviews, 297 commits, 188 PRs in 2 years 1 month
Contributions summary:Sébastien primarily focused on implementing and refactoring the collision detection algorithms. Their contributions involved modifying the source code of the `parry` library to use only one type of polygonal feature and fixing a corner-case that led to invalid contacts. They also incorporated the use of `Isometry::inv_mul` in multiple tests, demonstrating a focus on performance improvements. Furthermore, they added support for convex polygons, convex polyhedrons, and a series of other geometric shapes.
detection-librarygamedevrustcollision-detectionrust-lang
dimforge/rapier
Aug 2020 - Jan 2023
2D and 3D physics engines focused on performance.
Role in this project:Back-end Developer
Back-end DeveloperContributions:105 reviews, 686 commits, 405 PRs in 2 years 5 months
Contributions summary:Sébastien was involved in fixing bugs and adding features to a physics engine. Their contributions included fixing memory management issues, addressing bugs in contact and intersection generation, and implementing improvements in constraint resolution. They also made changes to the underlying mathematical structures used within the physics engine. The user demonstrated expertise in core physics concepts and optimization techniques.
physics-enginephysicsphysics-3d2dgame-development
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