 During his studies, Schimmelfennig had research stays in Dijon, France and at Tufts University in Medford, Massachusetts.Upon completion of his doctorate, he served as Assistant Professor of International Politics in Tübingen from 1995-1997.This period was followed by visiting professorships in political science and/or European politics at the University of Constance (1997–1998), University of Düsseldorf (2001), Ludwig Maximilian University of Munich (2003–2004) and the Institute of Advanced Studies in Vienna, Austria (November 2004).