- March 1, 2013 – present: Professor, Institute for the History of Science, Polish Academy of Sciences (Kraków–Warsaw).
- October 2010 – 28 February 2013: Associate Professor (Profesor nadzwyczajny), Institute for the History of Science, Polish Academy of Sciences (Kraków–Warsaw).
- March 1, 2006 – September 30, 2010: Associate Professor (Docent), Institute for the History of Science, Polish Academy of Sciences (Kraków–Warsaw).
- January 1, 1998 – February 28, 2006: Assistant Professor (Adiunkt), Institute for the History of Science, Polish Academy of Sciences (Kraków–Warsaw).
- October 1, 1991 – December 31, 1997: Senior Assistant (Starszy asystent), Institute for the History of Science, Polish Academy of Sciences (Kraków–Warsaw).
- September 15, 1991 – September 30, 1991: Archivist (Dokumentalisa) (engineering and technical employee), Institute for the History of Science, Polish Academy of Sciences (Kraków–Warsaw).
- January 21– June 21, 1991: Physics teacher, Primary School No. 145, Kraków, Na Błonie Street 15b.
- September 1, 1988 – December 31, 1989: Assistant (researcher), Department of Solid State Physics, AGH University of Science and Technology, group dealing with research on magnetic semiconductors headed by prof. Józef Spałek, PhD, DSc: description of the so-called heavy-fermion systems and high-temperature superconductivity.
- September 1, 1987 – August 31, 1988: Assistantship, Department of Solid State Physics, AGH University of Science and Technology.
- November 15, 1986 – August 31, 1987: Independent physicist (engineering worker), Institute of Molecular Biology, Jagiellonian University, group of prof. Stanisław Łukiewicz, PhD, DSc dealing with cancer research: paramagnetic resonance measurements.