· David And Andrew Lewis Chair, Georgia Institute of Technology2019–
· Associate Director For Research At Institute For Robotics And Intelligent Machines, Georgia Institute of Technology2016–2024
· Dean's Professor, Georgia Institute of Technology2012–2018
· Associate Professor, Georgia Institute of Technology1998–2005
· Professor, Georgia Tech1998–2012
· Assistant Professor, University of Virginia1994–1998
· Post-Doctoral Fellow, Purdue University1993–1994
· Graduate Research Assistant, Purdue University1989–1993
· Graduate Research Assistant, Virginia Tech1986–1987