Nathan Cassereau
Nathan Cassereau

Skills & Expertise

Languages
French Native
English Professional
GPU & Kernel Optimization
CUDATritonPallasGPU Profiling (Nsight, Torch)
Distributed & Parallel Computing
OpenMPPyTorch DDP/FSDPDeepSpeedMegatron-LM
ML Frameworks & Tools
PyTorchJAXvLLMW&BMLflowHuggingFace (Transformers, Datasets, Accelerate)
Deep Learning
NLP & LLMComputer VisionDiffusion ModelsMulti-modal AIPost-training
HPC Infrastructure
SlurmSpackDockerApptainerModulesAnsibleTerraformOpenStackConda
Programming & Tools
PythonRustC++JupyterGitCI/CDLaTeXGrafanaPostgreSQL

Summary

I'm an AI/HPC engineer specializing in GPU kernel optimization (CUDA, Triton), distributed training at scale, and research collaboration on national supercomputers such as Jean Zay and GB200 NVL72. I work across the full stack, from low-level kernel tuning to infrastructure deployment, supporting cutting-edge AI research across multiple scientific domains (NLP, computer vision, astrophysics, climate modeling), and I provide training on AI optimization techniques to research institutions.

Work Experience

AI DevTech

NVIDIA
October 2026 - Ongoing

Senior HPC AI Engineer

AMIAD
October 2025 - October 2026

ML Engineer (Freelance)

Entalpic
June 2025 - September 2025

Artificial Intelligence Engineer

IDRIS (CNRS)
May 2021 - May 2025

Internships

Teachings

During my experience at IDRIS, one of my task was to provide teaching courses to universities, other institutes, and even private companies. Here is an overview of teachings I did during my time at IDRIS.

  • Specialization of Large Language Models: Prompt Engineering & Fine-tuning (Manager of this course)
  • Optimization of Deep Learning for Supercomputers
  • Other IDRIS formal courses
  • Miscellaneous
NVIDIA
RTE
Thales
IDEMIA
Guerbet
CEA
Ministères des finances / de la justice / de la transition écologique / de l'intérieur
EDF
MétéoFrance
France Travail
CNRS
CentraleSupélec
Collège de France
ENS Paris Saclay
ENGIE
INRIA
INSERM
ONERA
Institut Pasteur
École Polytechnique
Sorbonne Université
Synchrotron Soleil

and many other...

Education

MSc. Artificial Intelligence & Deep Learning with Honours

2019 - 2020
Imperial College London, London (United Kingdom)

Master in Engineering

2017 - 2020
CentraleSupélec, Gif-sur-Yvette (France)

Two-year undergraduate intensive course in maths & physics to prepare for nationwide competitive examination

2015 - 2017
Lycée Michelet, Vanves (France)

High-School Diploma in Science with Highest Honours

2015
Lycée Jacques Monod, Clamart (France)