1996-1997 – teacher in the Primary School No. 8 in Białystok and the Trade and Economics School Complex in Białystok
1997-2002 – assistant lecturer in the Institute of History, University of Białystok
2002-2008 – assistant professor (adiunkt) in the Institute of History, University of Białystok since 01.10.2008 associate professor (profesor nadzwyczajny), University of Białystok
2006-2008 – Deputy Director of the Institute of History, University of Białystok
2008-2012 – Director of the Institute of History (from 2010 the Institute of History and Political Science), University of Białystok since 01.10.2008 – Head of the Department of Political Relations
2012-2016 – Dean of the Faculty of History and Sociology, University of Bialystok since 01.09.2016 Vice-Rector for education, University of Białystok
Author of over 145 scientific publications (in Polish and foreign languages), including 8 monographs, 9 source editings, 2 academic textbooks and 12 scientific editorials.