Dionne is an international program specialist for the Office of International and Interagency Affairs at the National Aeronautics and Space Administration (NASA). She provides international human exploration policy, agreement, and engagement support to NASA’s chief health and medical officer; chief of safety and mission assurance; and NASA’s Orion spacecraft, Space Launch System rocket, and Exploration Ground Systems programs. As division lead for Canada and the State Department, she facilitates space cooperation with the Canadian Space Agency. Prior to working at NASA, Dionne spent ten years working for the Department of Defense supporting international military security assistance and cooperation programs for more than seventy countries. She received two Joint Civilian Service Medals. Dionne was a 2009 Boren Scholar who spent a year learning Arabic in Jordan. She received her master of arts degree in strategic security studies from the National Defense University.