Complex sentence: He graduated from the University of Illinois in Urbana-Champaign in 1951 in Civil Engineering and was initially employed by the Bridge Department of the State of Illinois abnd subsequently many other Consulting firms worldwide.
Split into simpler sentences: He graduated from the University of Illinois in Urbana-Champaign in 1951 in Civil Engineering. His first job was with the Bridge Department of the State of Illinois and subsequently many other Consulting firms worldwide.