Greg studied mechanical engineering as an undergraduate at the University of Colorado, where he helped develop the 2cam rock climbing anchor. He spent two years as a stress analyst at Boeing, working on all of Boeing's commercial airplane models. He then returned to graduate school at the University of Delaware to study cartilage mechanics. He is now with W. L. Gore & Associates as a product manager in the disk drive filtration group. He balances his engineering experience with creative works in sculpture.