He has been with IUP since 2004. Before coming to IUP, he worked at the University of Massachusetts, Amherst, as an adjunct assistant professor and senior postdoctoral researcher; the University of California, Davis, as a postdoctoral fellow and lecturer; and the University of Connecticut as a research and teaching assistant. He has also held positions as an environmental consultant, a project geologist, and a hydro geologist. Dr. Lewis acted as the structural geologist on the 2007 Integrated Ocean Drilling Program Expedition 315. He has secured nearly $500,000 in grants to further research in the geosciences field. Dr. Lewis recently received a National Science Foundation grant to study reactivation of continental margin fraction zones employing numerical modeling of modern and ancient orogens.