Assistant Institute of Physics Pedagogical University, Rzeszow, 1984-1985. Senior research associate Institute of Metallurgy and Materials Science, Cracow, since 1986. Research associate department mining and metallurgical engineering McGill University, Montreal, Quebec, 1991-1992.
Postdoctoral associate department manufacturing engineering and engineering technical Brigham Young University, Provo, Utah, 1994. Research fellow A.V. Humboldt Foundation, Institute für Werkstoffe, Technology University, Braunschweig, Germany, since 1995.