I study the Universe at its largest scales and across cosmic epochs — looking for cracks in our standard model that might hint at something deeper.
I grew up in El Salvador and moved to Montpellier, France to study Physics — a leap that eventually led me to Cosmology, which I've been happily lost in ever since. After a BSc in Fundamental Physics, an MSc at the particle-cosmology interface, and a PhD on dark energy phenomenology with David Polarski, I spent almost three years as a postdoc at KASI in South Korea, working closely with DESI data. I'm now based in Prague at CEICO/FZU, part of the Czech Academy of Sciences.
Outside of research, I spend most of my time playing music, cooking, and staying in touch with friends scattered across too many time zones.
The standard cosmological model works remarkably well — until it doesn't. I work at the boundary between theory and data, building statistical tools to stress-test ΛCDM against observations from surveys like DESI and Rubin, and to find out whether the tensions we see are flukes or something genuinely new.
Loading recent publications…
Good science needs reproducible tools. Here are some of the packages I've built along the way — all open source, free to use, adapt, or improve.
Exploration and characterization of primordial features in the power spectrum using Gaussian Processes and PCA.
Interactive companion app to "Charging Across the Phantom Divide with Modified Gravity".
I'm always happy to talk science, explore collaborations, or discuss open-source tools. My inbox is open.
