The company said Wednesday that she succeeds John Gannon, who retired June 1.
Gray previously spent 13 years Lockheed Martin Corp. (NYSE: LMT), holding positions in information and national security while working with federal customers.
There, she served as vice president for enterprise information technology solutions unit, director of corporate strategy and deputy director for the unit covering Army and Defense Information Systems Agency programs.
Prior to working in the defense sector, she worked in information systems for the city of Cape Coral, Fla., Johnston County, N.C. and the Wake/Johnston County school system.
Former Homeland Security Secretary Michael Chertoff was recently elected to chair the board of directors at BAE Systems Inc., nearly two years after joining the board as a member.