Julien Sempéré has served as Director General of Services (DGS) at Université Paris-Saclay since January 2025. A graduate of the École nationale des chartes and a librarian, he also holds a Ph.D. in history. After holding various positions at Paris-Descartes University, he joined Université Paris-Saclay, where he notably headed the Department of Libraries, Information, and Open Science (DiBISO) before being appointed Deputy Director General of Services in 2023.