· Professor of Aerospace and Geophysics, California Institute of Technology (Caltech)2016–
· Director, Jet Propulsion Laboratory (JPL)2016–2021
· Clare Cockrell Williams Chair in Engineering and Director of the Center for Space Research, University of Texas at Austin2015–2016
· Various Leadership Roles, Jet Propulsion Laboratory (JPL)1993–2015
· Ph.D. in Aerospace Engineering, University of Texas at Austin1989–
· M.S. in Aerospace Engineering, University of Texas at Austin1985–
· B.S. in Aerospace Engineering, University of Texas at Austin1983–