2009-2012
Dean of the Bremen International Graduate School of Social Sciences (BIGSSS)

since September 2006
Professor for policy analysis at the University of Bremen

October 2005
Appointment as professor for political science at the University of Bielefeld

Academic year 2004/05
Professor pro tempore for European studies at the Friedrich-Schiller-Universität Jena

1990-2005
Research fellow at the Max-Planck Insitute for the Study of Societies (MPIfG), Cologne