Nestor Demeure
Performance System Architect at NVIDIA
Berkeley, California, United States
Summary
👤
Senior🎓
Top SchoolNestor Demeure is a Performance System Architect and PhD-trained engineer blending applied mathematics, AI, and high-performance computing to turn research into production-grade systems. With 11 years of experience across national labs and academia, he has led GPU porting of cosmology workloads, built a NERSC documentation chatbot, and driven adoption of modern HPC programming models. Now at NVIDIA in Berkeley, he focuses on numerical accuracy and scalable performance engineering informed by deep expertise in floating-point behavior. An active open-source contributor, he has improved core numerical routines in Rust’s nalgebra, highlighting a practical command of linear algebra and low-level optimization. Colleagues know him for bridging rigorous research with pragmatic implementation—often surfacing subtle numerical trade-offs that others overlook.
11 years of coding experience
5 years of employment as a software developer
PhD, Applied mathematics and computeur science, PhD, Applied mathematics and computeur science at ENS Paris-SaclayMaster's degree in software and knowledge engineering, Master ILC, Informatique, Master's degree in software and knowledge engineering, Master ILC, Informatique at University of StrasbourgEngineering degree, Computer science and applied Mathematics, Engineering degree, Computer science and applied Mathematics at ENSIIE - École Nationale Supérieure d'Informatique pour l'Industrie et l'EntrepriseMP* - Mathematics Physics, MP* - Mathematics Physics at Classe préparatoire aux grandes écoles : Lycée Henri Wallon
French, English, German
Stackoverflow
519reputation
58kreached
12answers
3questions
Github Skills (12)
vector10
vector-math10
rust10
matrix10
numerical-methods10
linear-algebra10
algebra10
android-studio6
artificial-intelligence6
monte-carlo6
parsing6
llvm6
Programming languages (15)
Github contributions (5)
dimforge/nalgebra
Nov 2019 - Nov 2019
Linear algebra library for Rust.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:24 commits, 2 PRs, 19 comments in 15 days
Contributions summary:Nestor primarily contributed to the core linear algebra library for Rust, focusing on implementing and improving mathematical operations. They updated the `solve` method to leverage the `Storage` trait for more efficient storage handling. Further contributions involved adding and refining Cholesky decomposition functionalities such as `insert_column` and `remove_column`. The user's work also included adding and testing updates for rank-one updates, along with general code cleanup, demonstrating expertise in numerical methods and linear algebra within the Rust programming language.
eigenvalueslinear-algebra-librarylinear-algebrandarrayrust
nestordemeure/chromosomes
Sep 2018 - Jan 2020
Contributions:6 commits, 9 pushes, 2 branches in 1 year 4 months
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