Department of Chemistry, University of Illinois at Chicago Circle, Chicago, USA 1. Coordinator of General Chemistry Courses: CHEM 111, CHEM 112 and CHEM 113 (1983-1985) Faculty of Chemistry, University of Warsaw, Warsaw, Poland 1. Coordinator of Chemical Physics Laboratory for Students (1985-1989) 2. Head of Laboratory of Molecular Spectroscopy (1989-1999) 3. Member of Faculty Council (1990-1996, 2005-2008, 2008-2012 and 2012-2016) 4. Head of Laboratory of NMR Spectroscopy (since 1999) 5. Coordinator of Specialization in Physical Chemistry for Students (since 2001)