His appointment brings the number Cisco’s board members to 10, the company said Wednesday.
The 35-year aerospace and defense industry veteran led Northrop as chief executive from 2010 to 2018 and previously held the positions of president, chief financial officer, corporate vice president and chief financial officer.
He joined the Falls Church, Va.-based defense company in 2002 upon its acquisition of TRW, where he served in technical and management positions focused on electronic and space systems. Following the purchase, he was elected as head of Northrop’s space technology sector.
Bush also serves on the boards of General Motors and Dow and is a member of the National Academy of Engineering.
He completed an executive management program at University of California at Los Angeles.