Complex sentence: He served as Assistant Professor of Electrical Engineering, at the University of California, Berkeley, 1957-58 and from 1958 to 1968 he was a Member of Technical Staff at Bell Telephone Laboratories in Murray Hill.
Split into simpler sentences: He served as Assistant Professor of Electrical Engineering, at the University of California, Berkeley, 1957-58. From 1958 to 1968 he was a Member of Technical Staff at Bell Telephone Laboratories in Murray Hill.