Technology researcher Polish Rlwys. Research Institute, Warsaw, 1955-1956. With Polish Rlwys. (PKP), 1956-1960.
Adjunct technical researcher Polish Rlwys. Research Institute (COBiRTK), 1960-1968, independent researcher, 1968-1974. Assistant professor Politechnika, Radom, Poland, 1971—2002.
Lecturer Politechnika, Warsaw, 1967-1970, 2002-2003. Visiting lecturer Politechnika, Katowice, Poland, 1979-1980. Deputy director Technology Institute, Radom, 1978-1981.
Member technical-economics council Polish Railways, 1990-1993. Visitor British Council, 1979, 88. Lecturer, technical visitor Deutsche Forschungsgemeinschaft, Germany, 1995.
Researcher Dutch and British Rlys., UNTAss., Utrecht, The Netherlands and London, 1970. Contributor International Conference CESURA, Gdansk, Poland, 2003, World Mobility Forum, Stuttgart, Germany, 2006.