Kenneth E. Baker is the principal assistant deputy administrator for NNSA's Office of Defense Nuclear Nonproliferation. Prior to the creation of the NNSA in March 2000, Baker held the position of Principal Deputy Assistant Secretary and Principal Deputy Director of the Department of Energy’s nonproliferation office.

Before joining NNSA, Baker served as Executive Assistant to the Senior Vice President for Command, Control and Communications at Booz, Allen and Hamilton. He also served as Director of Plans, Operations and Security at the White House (1989-1992); Director of Strategic Operations, Office of the Secretary of Defense (1983-1989); Single Integrated Operational Plan Advisor to the President (1979-1983); and Chief, Tactics Division, Strategic Air Command Headquarters (1975-1979). He held a variety of other key positions within the Strategic Air Command from 1963-1975.

Baker is a recipient of the Defense Distinguished Service Award, the Defense Superior Service Award, and two Defense Meritorious Service Awards. He also received two President’s Distinguished Service Awards for Senior Executive level service at the Department of Energy.