Reviewer of Criminology, Social Forces, International Journal of Comparative Sociology, Crime & Delinquency, The Sociological Quarterly, Social Science Research, Acta Sociologica, Public Opinion Quarterly, International Journal of Conflict and Violence, Political Psychology, Journal of Sports Management and Commercialization and The Sports Collection.
Associate Researcher at the Insitute for interdisciplinary Research on Conflict and Violence, Bielefeld University (since January 2017).
Associate Researcher at the “Laboratory for Comparative Social Research” of Higher School of Economics, Moscow/St. Petersburg, Russia (since March 2014).
Lecturer at Evangelische Hochschule Darmstadt (since 2015) and at Katholische Hochschule NRW (since 2021)
Member of the „Fachstelle für Fußball und Konflikt“ (“task force football & conflict”) at the Insitute for interdisciplinary Research on Conflict and Violence, Bielefeld University (since February 2014).
Member of the Deutsche Gesellschaft für Soziologie (since 2020)
Previous Memberships: American Society of Criminology, Eastern Sociological Society, International Society of Political Psychology
Chair and Organizer of Ad-Hoc-Group “Das Elektorat rechter Parteien: Motive, Mechanismen, Kontexte” at 40th Congress of Deutsche Gesellschaft für Soziologie, September 2020.
Co-Chair of RC36 on “Contemporary Applications of Anomie Theories” at the World Congress of the International Sociology Association in Toronto, Canada, 19.7.2018.
Organisation of several scientific workshops and international conferences (“Conflict, Peace & Integration – 23rd Annual Conference of the German Peace Psychology Association” in Bielefeld, June 2010; “Group-Focused Enmity across Borders – European Approaches & Comparisons” in Hannover, April 2013; “Facing Prejudice – European Initiative on Anti-Semitism and Anti-Ziganism” in August 2014).