 In 1927 he graduated from the School of Law and Social Sciences of the Stefan Batory University in Vilnius and began to work there as an academic.His career was interrupted by the outbreak of the Second World War, but he continued it from 1945 at the University of Wrocław as a professor.During the years of 1947 to 1952 he was the vice-rector (vice-chancellor) of the university and from 1956 to 1958 he headed its School of Law

Seweryn was equally involved in numerous initiatives outside of the university.