John T. Lewis retired from the Central Intelligence Agency (CIA) as a Senior Intelligence Service Expert in February 2023. He spent over 34 years as a Technical Intelligence Officer, including technology leadership roles in the Directorate of Science & Technology (DS&T), the Directorate of Digital Innovation (DDI) and the Directorate of Operations (DO) with overseas assignments in Europe, Latin America, the Middle East and conflict zones. He is a recipient of the CIA Trailblazer Medal, the CIA Career Intelligence Medal, and a four-time winner of DS&T’s John A. McCone Award for Excellence in Science & Technology.