Founder of Cyber Law International. Also Deputy Chair of the Global Commission on the Stability of Cyberspace’s Research Advisory Group, and Ambassador of the NATO Cooperative Cyber Defence Centre of Excellence. Formerly senior analyst at the NATO CCD COE (2008-2017).

Also Professor of International Law at the University of Exeter, Howard S. Levie Professor of Law at the United States Naval War College, Francis Lieber Distinguished Scholar at West Point, and Senior Fellow at the NATO Cooperative Cyber Defence Centre of Excellence.

Also Chair of Public Law, in particular
public international law, European law
and foreign constitutional law, at the
Europa-Universitat Viadrina.

Also Professor of Public International Law at the University of Nottingham, co-editor of EJIL: Talk!, the blog of the European Journal of International Law.

Also Professor of International Law and Security at the University of Glasgow, visiting professor at Sciences Po, Paris.

Also Professor of Military and Security Law and Director of the Australian Centre for the Study of Armed Conflict at the University of New South Wales Canberra at the Australian Defence Force Academy.