2025 Fellow of the Resident Group "Eigendynamiken. Analogue Structures of Change in Premodern East Asia and Europe" at the Centre for Interdisciplinary Research Bielefeld
Since 2017 departmental teaching staff in the Department of History for the Medieval and Early Modern Period at Bielefeld University
2016-2017 Deputy Chair for the History of the Late Middle Ages and Early Modern Period at the University of Duisburg-Essen
2015 Appointment as adjunct professor at the Faculty of History, Philosophy and Theology at Bielefeld University
2014-2015 Deputy Professor of General History with special emphasis on the High and Late Middle Ages at the history of Bielefeld University
2013-2014 Deputy Chair of Medieval History, in particular the History of the Later Middle Ages at the Ruhr University Bochum
2009-2013 Academic Senior Councillor at the Faculty of History at the Ruhr University Bochum in the field of Medieval History
2007-2009 Lecturer in Medieval History at the University of Kassel with W2 lectureship at the Max Planck Institute for European Legal History in Frankfurt am Main
2006-2007 Project collaborator and Temporary Lecturer at the Chair of Medieval History and Ancillary Historical Sciences at the Ruhr University Bochum
2004-2006 Substitute for German regional history, late medieval history and Eastern European history at the Justus Liebig University Giessen
2004 Post-doctoral habilitation, Privatdozent [senior lecturer] for Medieval and Modern History at Justus Liebig University Giessen
1998-2004 Research assistant at the Justus Liebig University Giessen
1997-1998 Immanuel Kant habilitation scholarship from the Herder Institute Marburg
1996 Habilitation scholarship from the German Historical Institute in Warsaw
1995-1997 Postdoctoral Fellowship at the Research Training Group "Church and Society in the Holy Roman Empire of the 15th and 16th Centuries" at the Georg-August-University Göttingen
1994 Doctorate in history, specialising in the Middle Ages, at the Free University of Berlin
1990 Scholar, stipendiary at the Centro Interuniversitario di Studi Francescani in Assisi
1989-1994 Academic co-worker at the Friedrich Meinecke Institute of the Free University of Berlin
1988 First state exam(ination) for the office of the Studienrat before the Scientific State Examination Office Berlin
1983-1988 Studied history, German philology and political science at the Free University of Berlin
Current research topics
Pre-modern agricultural and migration history
New cultural history of the political
Comparative regional history
Research on courts and residences in the late Middle Ages and early modern period
Church and city history in the later Middle Ages
Monasticism and religious orders since the early and high Middle Ages
Memberships and Functions
Historical Commission for Westphalia
Historical Commission for Silesia
Association for Student Exchange in Central and Eastern Europe
Sponsor of the library of the Ratsgymnasium Bielefeld e. V.