In 1967, after completing his Ph.D, he became the youngest professor ever at the Weizmann Institute. He has been the founder and first chairman of the Board (1999-2015) of the Davidson Institute of Science Education at the Weizmann Institute and he is currently Chair of the Management Committee of the Weizmann Global Endowment Management Trust in New York. In 1979 he was elected as Chairman of the Planning and Budgeting Committee (PBC) of the Council of Higher Education, serving two terms until 1985. During his tenure as chairman of the PBC, he established the Israel Inter-University Computation Center (IUCC) and laid the foundations for the university computer network in Israel. He was the President, from 1988 to 2001, of the Weizmann Institute of Science. During his presidency, the Weizmann Institute, entirely dedicated to basic research, became one of the leading royalty earning academic research organizations in the world.