 In 1992, he became a professor.Andrzej Kossakowski taught at the universities in Stuttgart (1973) Austin (1974), Milan (1975), Essen (1989), Leuven (1991), Naples, Santiago de Chile, and Tokio.In 2019, Andrzej Kossakowski received the Prize of the Foundation for Polish Science in the field of mathematics, physics, and engineering for his works on the theory of open quantum systems.