Keller, a 2005 graduate of Penn State DuBois with an associate of science in wildlife technology and a 2007 graduate of Penn State with a bachelor of science in wildlife and fisheries science, serves as the game mammals section supervisor and furbearer biologist for the Pennsylvania Game Commission. His work includes statewide wildlife management, species recovery and research. Keller has maintained a strong connection to Penn State DuBois by mentoring students, delivering guest lectures, and supporting hands-on learning experiences in wildlife research.