Sébastien Philippe is an Associate Research Scholar at the Woodrow Wilson School of Public and International Affairs where he is a core member of the Program on Science and Global Security. He is also an associate fellow (2019-2021) at Sciences-Po Paris' Centre for International Studies with the Nuclear Knowledges Program. His research focuses on the negotiation, monitoring and verification of nuclear arms control and non-proliferation agreements, the reconstruction of past nuclear weapon activities, and the impact of emerging technologies on the safety, security, and vulnerability of strategic nuclear forces. Sebastien Philippe was previously a 2018-2019 Stanton Nuclear Security Postdoctoral Fellow at Harvard Kennedy School's Belfer Center for Science and International Affairs. From 2011-2012, he worked in the French Ministry of Defense, where he was a nuclear weapon system safety expert for the strategic nuclear submarine forces. Philippe is associate editor of the journal Science and Global Security and a member of the International Panel on Fissile Materials. He holds a PhD (2018) in Mechanical and Aerospace Engineering from Princeton University, where he was a 2017-2018 Harold W. Dodds Honorific Fellow.