Jan Willms read International Relations (major: Public International Law) at the TU Dresden and at the Université Paris X Nanterre, a course he completed with a Bachelor of Arts in 2006. In 2007 he obtained a Masters of Laws (LL.M.) in Public International Law from the University of Nottingham. Then (in 2007/2008), he worked as a Carlo-Schmid-Fellow for the Appeals Chamber of the International Criminal Tribunal for the former Yugoslavia in the Hague. In 2008/2009 he was Legal Attaché in the Legal Division of the International Committee of the Red Cross in Geneva. Since March 2010 he is Research Associate in Subproject C8 and writes his doctoral thesis about extraterritorial obligations to prosecute.
Willms, Jan 2012. "Justice through Armed Groups' Governance - An Oxymoron?", SFB Working Paper Series Nr. 40. DFG Sonderforschungsbereich 700, Berlin: Freie Universität.
"Sticks, Carrots, Talks: Handlungsmöglichkeiten der EU im Streit über das nordkoreanische Atomprogramm Options of the EU in the Dispute over North Korea’s Atomic Programme" (with J Landmann) in A Brandt and A Niemann Interessen und Handlungsspielräume in der deutschen und europäischen Außenpolitik Interests and Rooms for Manoeuvre of the German and European Foreign Policy (TUD press, Dresden 2007).