Previously, he was a research associate in the department of Aerospace and Mechanical Engineering at the University of Arizona. He received his PhD degree in Aerospace Engineering from New Mexico State University. His research interests include spacecraft control, geometric mechanics, and fractional order systems. He has published/co-authored two book chapters and several journal articles in Journal of Guidance, Control, and Dynamics, Acta Astronautica, and Nonlinear Dynamics, among others. He serves as a reviewer for more than 20 journals including Journal of Guidance, Control, and Dynamics, IEEE Transactions on Automatic Control, and Nonlinear Dynamics.