Here are some positions I have held:

in administration

• 2021-2024 - Director of the Institute of Mathematics, Szczecin University.
• 2019-2020 - Head od Scientific Council of Institute of Mathematics, Szczecin University.
• 2008-2016 - Dean of Department of Mathematics and Physics, Szczecin University.
• 2002-2008 - Vice Dean for Scientific Matters, Department of Mathematics and Physics, Szczecin University.
• 2005-2008 - member of Senate of University of Szczecin
• 2002-2005 - member of Senate of University of Szczecin
• 1993-1995 - member of Senate of University of Szczecin

in academics

• 1992- University of Szczecin Mathematics Department professor
• 1991-1992 C.C.Hsiung assistant professor of mathematics Lehigh University
• 1977-1987 Adjunct Professor, Technical University of Szczecin

in Polish scientific institutions

• 2021-2023 member of Mathematical Committee of Polish Academy of Sciences
• 2016-2020 member of Mathematical Committee of Polish Academy of Sciences
• 1998-2001 member of Mathematical Committee of Polish Academy of Sciences
• 1995-1998 member of Mathematical Committee of Polish Academy of Sciences

Short time visits:

• February 2017 CRM Barcelona, Catalunya, Spain
• May 2015 University of California, San Diego, USA
• June/July 2013 Weizmann Institute of Science, Rehovot, Israel
• Sept. 2012 Weizmann Institute of Science, Rehovot, Israel
• Aug. 2002 Newton Institut, Cambridge Univ. England
• Feb. 2001 Max Planck Institute, Bonn
• Aug. 1999 ICTP, Trieste, Italy
• Dec. 1997 Universität Bielefeld, Germany
• Jan. 1995 Université de Lausanne, Switzerland
• Dec. 1994 Universität Bielefeld, Germany