Dr Sébastien Philippe is a Stanton Nuclear Security Postdoctoral Fellow at Harvard Kennedy School’s Belfer Center. His research focuses on developing new verification technologies and approaches to support future nuclear arms control and disarmament efforts. In parallel, he pursues research interests on French nuclear policymaking as a visiting fellow with Sciences-Po Paris’ Nuclear Knowledges Program. Before joining Harvard, Philippe was a Research Associate with Princeton University’s Program on Science and Global Security. He earned his PhD in Mechanical and Aerospace Engineering from Princeton University and was recognized by the University as an Honorific Fellow for “outstanding performance and professional promise.” He also worked in the French Ministry of Defense, where he was a nuclear safety expert for the strategic nuclear forces.