Pierre Kestener is a research engineer at CEA (France's National Nuclear Energy Research Center) within the Maison de la Simulation, a research division for high-performance computing. His main interest is in helping domain scientists from astrophysics or computational fluid dynamics to design, develop, and optimize production-level code for large computing platforms. He is the lead developer of code RamsesGPU dedicated to magneto-hydrodynamics turbulent flow studies. He also recently started the design of CanoP, a new application platform for CFD with adaptive mesh refinement. As part of the CUDA research and teaching center program, he is involved in teaching GPU programming for students at master level as well as for researchers and engineers during trainings at France's PRACE advanced training center.