Dr. Mark J. Lewis

Acting Deputy Under Secretary of Defense for Research and Engineering and Director of Defense Research and Engineering for Modernization

Dr. Mark J. Lewis is the Acting Deputy Under Secretary of Defense for
Research and Engineering. In this role, he is responsible for research,
development, and prototyping activities across the DoD enterprise. In
addition, he oversees the activities of the Defense Advanced Research
Projects Agency (DARPA), the Missile Defense Agency (MDA), the Space
Development Agency (SDA), the Defense Innovation Unit (DIU), the DoD
Laboratory and Engineering Center enterprise, and the Under Secretariat
staff focused on developing advanced technology and capability for the U.S.

He is also Director of Defense Research and Engineering for Modernization.
In this capacity, Dr. Lewis oversees investment and capability analysis of
the Pentagon's modernization priorities outlined in the National Defense
Strategy.  He has oversight of the nine assistant directors assigned to
those modernization portfolios, working in collaboration with the two
technical directors, and their roadmaps - the comprehensive strategies to
manage, provide oversight and guide choices for each modernization priority
area.  These modernization priorities include 5G; Artificial Intelligence
and Machine Learning; Autonomy; Biotechnology; Cyber; Directed Energy; Fully
Networked Command, Control, and Communications; Hypersonics;
Microelectronics; Quantum Science; and Space.

Prior to his current roles, Dr. Lewis was the Director of the IDA Science
and Technology Policy Institute where he lead a team of researchers
providing analysis of science and technology issues for the Office of
Science and Technology Policy in the White House, the National Science
Foundation, the National Institutes of Health, NASA and other federal
science agencies.  Dr. Lewis served as the Willis Young, Jr. Professor and
Chair of the Department of Aerospace Engineering at the University of
Maryland, President of the American Institute of Aeronautics and
Astronautics, and was the founder of both the Center for Hypersonics
Education and Research and the NASA-Air Force Constellation University
Institutes Project.  He has also served on various advisory boards for NASA,
the Defense Department, and the Air Force, including two terms on the Air
Force Scientific Advisory Board.

From 2004 to 2008, Dr. Lewis served as the Chief Scientist of the U.S. Air
Force.  During his tenure, Dr. Lewis expanded basic research support,
focused efforts on launch vehicle technologies, established major
international programs and contributed to the Presidential National
Aeronautics Executive Order.

Dr. Lewis attended the Massachusetts Institute of Technology where he
received a Bachelor of Science degree in aeronautics and astronautics,
Bachelor of Science degree in earth and planetary science (1984), and both a
Master of Science degree (1985) and a Doctor of Science degree (1988) in
aeronautics and astronautics.