Böller earned an M.A. in political science from Heidelberg University, Germany and received his Ph.D. at Kaiserslautern University of Technology in 2014. In 2013, Böller held a visiting fellowship at the University of Wisconsin-Madison. His research interests include U.S. foreign and security policy, arms control and transatlantic relations with an emphasis on parliamentary control and the influence of non-executive actors in international politics.