He was the chief pilot of NASA's Jet Propulsion Laboratory's Mars helicopter, Ingenuity, and led the development of its aerodynamics and flight control system.

[3][4] From 2001 to 2006, Grip studied for a five-year engineering cybernetics master's degree, and from 2006 to 2010 a PhD at the Norwegian University of Science and Technology.

The dissertation focused on real-time estimation of dynamic variables for use in safety systems in cars, such as anti-lock brakes and electronic stability program.

[11] Since 2013, Grip has worked as a robotics technologist in the Guidance and Control Analysis Group at NASA's Jet Propulsion Laboratory at the California Institute of Technology.

[16] On April 19, 2021, at 11:30 UTC, Grip flew Ingenuity for 39.1 seconds, raising the helicopter vertically about 10 feet (3.0 m), rotating in place 96 degrees in a planned maneuver, and landing it successfully.