Smoleński was professor at the Wrocław and the Warsaw University of Technology.
He was also rector of those universities, in 1951–1960 and 1965–1969, respectively.
Smoleński was a member of Polish Academy of Sciences, and held the post of scientific secretary, then vice-chairman of this organization. During the Nazi occupation of Poland, he was an officer of the Home Army, vice-chief of arming of the Supreme Command of the Home Army. He was also a member of Sejm of the Polish People's Republic in years 1957–1961 and in again during 1969–1972.
In 1961, Wrocław University of Technology conferred Smoleński with its first honorary doctorate.[1]
