1. Professor of European Integration and European Union Politics, Institute of Political Science, University of Duisburg-Essen, Duisburg (Germany), 2020/21 Mercator-IPC Fellow
2. Senior Research Fellow, Institute of Social Sciences Belgrade, Belgrade (Serbia), Affiliated Research Fellow, Center for Constitutional Studies and Democratic Development (CCSDD) at Johns Hopkins University’s School of Advanced International Studies (SAIS), Bologna (Italy)