· Program Director, National Science Foundation (Current)2024–
· Research Program Director, USC Information Sciences Institute2022–
· Program Lead, United States Department of Defense2020–2024
· Associate Director For Networking And CyberSecurity, University of Colorado Boulder2018–2018
· Chief Scientist, Secure64 Software Corporation2017–2017
· Professor, University of Colorado Boulder2017–2022
· Program Manager, US Department of Homeland Security2013–2017
· Co-Founder, Maka'ala Networks2011–2013
· Associate Professor, Colorado State University2008–2013