Ion Errea is an Associate Professor at the University of the Basque Country (UPV/EHU), specializing in the theoretical study of complex properties in solid-state systems. He leads the Quantum Theory of Materials research group at the Materials Physics Center (CSIC-UPV/EHU). His work focuses on developing advanced computational methods to explore quantum and anharmonic effects in atomic vibrations, electron-phonon interactions, and their role in phenomena such superconductivity, thermoelectricity, and phase transitions in solids and nanostructures. He has devoted a large part of his career to the characterization and discovery of high-pressure hydrogen-based superconductors.