Glen S. Mattioli, Ph.D. was a professor and now is an adjunct professor of Earth & Environmental Sciences at the University of Texas at Arlington; he was on assignment at UNAVCO from June 2012 through September 2015, when he became a full-time UNAVCO staff member. Prior to that he was a professor of Geosciences at the University of Arkansas, Fayetteville, and the University of Puerto Rico, Mayagüez. He was recently appointed as Research Professor in the Physics Department at the University of Colorado Denver.

Mattioli received his BA from the University of Rochester in Geology, and his MS and PhD from Northwestern University, in Geological Sciences, before completing post-doctoral fellowships at Caltech and UC Berkeley. Glen has been doing tectonic and volcanic geodesy across the Caribbean since 1994. Glen resides with his wife, Pamela Jansma, and their two cats, Sammie and Sylvie in the Lower Highlands neighborhood of Denver.