FBI Director James B. Comey has named 25-year FBI veteran Mark Giuliano to be the agency’s new deputy director, overseeing all domestic and international investigative and intelligence activities, the bureau announced Monday. He begins Dec. 1, when current deputy Sean Joyce retires.

Giuliano, who began his career here as a special agent at the Washington Field Office, has a broad background in national security and counterterrorism and served as the FBI’s on-scene commander in Afghanistan, supporting U.S. Special Forces. Since August 2012, Giuliano been the special agent in charge in Atlanta.