Pepe trained in Biology (2015) and Clinical Psychology (2022). He obtained his PhD at the Spanish National Cancer Research Centre (2022), focusing on the study of the role of cell division regulators in physiological and altered neurodevelopment. After his PhD studies he led a project about the regulation of developmental timing in cell state transitions during early mammalian embryogenesis. Now, his current interests include the study of the molecular determinants of evolutionary differences and the study of autism spectrum disorder using brain organoids. Out of the lab, he loves music, psychology, and traveling.