Brian Sheridan is the senior vice president for GDIT’s defense portfolio, overseeing the delivery of mission-critical services and solutions to the U.S. Department of Defense and other government customers. Prior to his time in industry, during which he’s also served as GDIT’s vice president and general manager of the Joint, Air Force, Naval and Coalition sectors within the defense division, he held a variety of roles within the Department of Defense, including as assistant secretary of defense, special operations and low-intensity conflict. He began his career working for the CIA.