1. Professor of astronautics and executive director of the Systems Architecting and Engineering Program at the University of Southern California.
2. Senior systems engineer at Caltech's Jet Propulsion Laboratory and a lecturer in the System Architecting and Engineering Program at the University of Southern California.
3. Research scientist at the University of Southern California's Department of Astronautical Engineering.
4. PhD candidate in USC's Astronautics Department specialising in systems architecting and engineering.
5. PhD student in the Astronautics Department specialising in systems architecting and engineering.