Harrison most recently served as executive vice president of the undergraduate student body for the Student Government Association. Previously, he served as speaker of the house, student needs committee chair, and a class representative. Currently, Harrison is an undergraduate research assistant in the Pinto Lab, where he is developing a combined risk assessment for disinfection by-products and pathogens in drinking water alongside the United States Environmental Protection Agency. In this lab, he has gained practical hands-on skills in water quality analysis to improve treatment methods for drinking water authorities across the United States.