Current positions:

- Director of the Center for Cold War Studies, University of Southern Denmark
- Associate Professor at the University of Southern Denmark
- Leader of the Research Stream "Practices", Center for War Studies, University of Southern Denmark
- Visiting Professor, the Interdisciplinary Centre for European Studies (ICES), Europauniversität Flensburg, Germany
- Executive Director of the International Intelligence History Association
- Deputy Director for Europe of the European Intelligence Academy
- Member of the Institute for National and International Security (INIS), Serbia.
- Deputy Editor of the journal National Security and the Future
-  Editor for the contemporary historical journal, Arbejderhistorie.
- Regional Editor for Northern and Central Europe of Intelligence, Security and Public Affairs
- Member of the Scientific Council of the Journal Aparat Represji w Polsche Ludowej 1944-1989, Poland
- Member of the Scientific Advisory Board for the Danish  Central Library for Southern Slesvig
- Member of the Advisory Board of the Border museum Grenzhus, Germany.
- Member of Advisory board of Ludwig-Boltzmann-Institut für Kriegsfolgenforschungs publication series, Austria
- Member of the "Need to Know"- organizing committee
- Member of the Advisory Board of the Research Institute of European and American Studies, Greece
- Member of the Advisory Board of the Master for Intelligence and Cyber Studies (MICS)
- Member of the Advisory Board for Jahrbuch für historische Kommunismusforschung, Germany
- Member of the Scientific Committee of Zagreb Security Forum, Croatia
- Member of the Scientific Board “Bridging the Baltic”
- Member of the Steering Committee "Danish-German Remembrance Parliament"
- Member of the Members Council of Heinrich Böll Stiftung, Schleswig-Holstein, Germany 

Past guest professor/researcher at:
- Bundeswehr Center for Military History and Social Sciences, Potsdam, Germany

- Danish Central Library for Southern Schleswig, Germany

- Institute of History, University Uppsala, Sweden
- Institute for National Remembrance, Warsaw, Poland
- Institute of Political Studies, Bar Ilan University, Israel
- Institute of History, Christian-Albrecht-University Kiel, Germany
- Institute of History, University of Greifswald, Germany

Research areas

- Intelligence and Security history

- Foreign Policy

- Military history

- Eastern Europe during Communism

- German Contemporary history

- The German-Danish borderlands

- GDR

- Poland

- Denmark during the Cold War

- Communism in Denmark

- Media and disinformation during the Cold War

- Network of Medicine and Science