PhD in Economics 1986 at the Faculty of Economics, University of Warsaw. Teaching at this University between 1980-2008 (with sabbatical leave to join the Polish Government). Also short term teaching at the Business School of Warsaw University of Technology and "Krajowa Szkoła Administracji Publicznej" (National School of Public Administration) in Warsaw
Between 1990 and 2006 he has worked within consecutive Polish Governments on high level positions including Secretary of State for Europe and Secretary of State in the Ministry of Finance.
He has been Fulbright scholar at DUKE University, North Carolina, USA (1989/90), Dekaban-Liddle Foundation scholar in 1992 Glasgow University, and ACE Programme Scholar at Center for European Policy Studies (CEPS) in 1994. He worked with Breugel being between 2008-2011 Member of Board. Practitioner Fellow at the Sussex European Institute, University of Sussex, UK.
From 2008 until 2020 Director General in the General Secretariat of the EU Council of Ministers.