- IBS PAN
1976 - to date, Professor.
- Graduate School for Applied Informatics and Management
2008 - to date, Professor.
- The Telecommunication Institute
2008 - 2009, proxy to CEO, 2009 - 2010, director of Scientific Office.
- The Institute of Mathematical Machines
2007 - 2008, Scientific Secretary.
- Bank BISE S.A.
2004 - 2005, advisor to the managing board, leader of the New Basel Accord project.
- The Graduate School of Business Economics - Higher School of International Commerce and Finance
2003 - 2008, Professor.
- College for Management and Finance in Wrocław
2003 - 2007, Professor.
- National Depository of Securitues
1997 - 2003, advisor to the managing board, analyst.
- Warsaw Board of Trade
1995 - 1996, advisor to the managing board.
- Polish Development Bank S.A.
1994 - 1995, analyst.