Biography

John K. Tien Jr. joined the Board in December 2024. Tien is a U.S. Army veteran and former Deputy Secretary of the U.S. Department of Homeland Security and his extensive background across government, military, private and public sectors provides invaluable insight and understanding of SAIC’s industry to the Board. Tien currently holds positions as a distinguished professor of the practice and external fellow at the Georgia Institute of Technology and as senior fellow at the Harvard Kennedy School. Tien previously served as the Senate confirmed Deputy Secretary of the U.S. Department of Homeland Security (DHS) from June 2021 to July 2023. Prior to serving at DHS, Tien was a senior executive at Citigroup for a decade from 2011 to 2021, serving in chief operating officer roles. He also served in three other presidential Administrations from 1987 to 2011 in leadership roles as an active-duty U.S. Army officer in seven different U.S. states, three countries, and three combat tours in Iraq. Tien holds a Bachelor of Science in Civil Engineering from the United States Military Academy at West Point, a Master of Arts from Oxford University where he was a Rhodes Scholar and he was a National Security Fellow at the Harvard Kennedy School. He also sits on the Board of Directors at Union Pacific Railroad, the Carter Presidential Center board of councilors; and the U.S. military veterans non-profit, the Avalon Action Alliance.