Santiago Casas
Physicist And Ontologist at German Aerospace Center (DLR)
Aachen, North Rhine-Westphalia, Germany
Summary
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Senior🎓
Top SchoolSantiago Casas is a theoretical and numerical cosmologist with 14 years of experience specializing in precision cosmology, large-scale structure and dark energy, and nearly a decade of contributions to the ESA Euclid Consortium. He develops high-performance forecasting and likelihood pipelines, applies machine learning and emulator techniques to accelerate nonlinear predictions, and maintains widely used open-source tools such as JAX-Cosmo and extensions for CLASS, Cobaya and MontePython. Recently transitioning into ontologies and scientific metadata at the German Aerospace Center, he brings a rare combination of deep theoretical modeling, production-ready code, and metadata-driven reproducibility. Santiago mentors early-career researchers, coordinates cross-survey collaborations (including SKAO), and focuses on testable probes of modified gravity and neutrino mass. A summa cum laude PhD from Heidelberg, he pairs rigorous academic training with hands-on software engineering to maximize the scientific return of Stage-IV surveys.
14 years of coding experience
8 years of employment as a software developer
Master of Science (M.S.), Theoretical and Mathematical Physics, A, Master of Science (M.S.), Theoretical and Mathematical Physics, A at Ruprecht-Karls-Universität Heidelberg / University of HeidelbergDoctor (PhD), Cosmology, Summa cum laude, Doctor (PhD), Cosmology, Summa cum laude at Ruprecht-Karls-Universität HeidelbergB.Sc. Physics, Physics, A, B.Sc. Physics, Physics, A at University of Costa RicaDeutsches Abitur, Highschool, 1,5, Deutsches Abitur, Highschool, 1,5 at Deutsche Humboldt Schule, San José
German, English, Spanish, Portuguese
Stackoverflow
226reputation
32kreached
5answers
7questions
Github Skills (72)
keybase10
orbital-mechanics9
client-library9
pgp9
end-to-end-encryption9
energy9
chat9
cosmology9
injection9
service-client9
react8
issue-tracking8
astrodynamics8
random-walk8
snl-applications7
Programming languages (5)
Github contributions (5)
santiagocasas/MGCAMB
Apr 2019 - Mar 2023
This is a fork of the official MGCAMB repository
Contributions:6 PRs, 14 pushes, 4 branches in 3 years 11 months
santiagocasas/cosmicfishpie
Nov 2023 - Dec 2024
CosmicFishPie: Python Fisher Matrix code for Cosmological probes
Contributions:54 reviews, 38 PRs, 149 pushes in 1 year
bayesian-statisticscosmological-inferencecosmologyfisher-information-matrixphysics
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