Matthieu Schaller
Assistant Professor (University Lecturer) at Leiden University
Leiden, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolMatthieu Schaller is an Assistant Professor and computational astrophysicist with 13 years of experience building high-performance, particle-based simulation software and leading the development of the highly-parallel SWIFT code for cosmology and galaxy formation. His work bridges theoretical physics and hands-on HPC engineering, including GPU acceleration, smoothed particle hydrodynamics, and computational fluid dynamics applied to dark matter and fundamental physics. Based at Leiden University, he combines academic research (PhD in numerical galaxy formation) with substantial software stewardship, maintaining a research-grade codebase used by the community. Notably, he brings industrial CFD experience and a multilingual Swiss academic background, enabling pragmatic solutions to large-scale numerical and performance challenges.
13 years of coding experience
2 years of employment as a software developer
Maturité fédérale bilingue, Mathématiques, Physique, Maturité fédérale bilingue, Mathématiques, Physique at Gymnase du Bugnon, LausanneImperial College International Diploma, Physics, First class honours, Imperial College International Diploma, Physics, First class honours at Imperial College LondonPhD, Numerical simulations of galaxy formation, PhD, Numerical simulations of galaxy formation at Durham UniversityMaster of Science, Physics, Master of Science, Physics at EPFL (École polytechnique fédérale de Lausanne)
French, German, English
Github Skills (44)
simulation10
cosmology10
particle10
simulations10
gravity10
mpi10
hpc10
astrophysics10
gitlab10
swift10
hydrodynamics10
finder9
h5py9
parallel-python9
galaxy9
Programming languages (6)
Github contributions (5)
SWIFTSIM/SWIFT
Oct 2012 - Jan 2023
Modern astrophysics and cosmology particle-based code. Mirror of gitlab developments at https://gitlab.cosma.dur.ac.uk/swift/swiftsim
Contributions:2 releases, 2 reviews, 8187 commits in 10 years 4 months
gitlabswiftcosmologysphhydrodynamics
FLAMINGOSIM/FlamingoBaryonResponseEmulator
Aug 2024 - Jun 2025
A Gaussian process emulator predicting the baryonic response for a range of wavelength, redshifts, and galaxy formation model trained on the FLAMINGO suite of simulations
Contributions:6 releases, 10 pushes, 6 tags in 10 months
gaussian-processes
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