Pierre Yoo entered the Hotchkiss Bearcat community in the fall of 2011. He has an undergraduate degree from the University of Pennsylvania and a master of science in educational administration from the University of Scranton. He has been teaching science, coaching, advising, and living in the dormitory since starting his teaching career in 1993. He taught at his alma mater, The Hill School for five years, The Thacher School for six years, and St. George’s School for seven years. At St. George’s School, he was the head track and field coach and led the girls' track and field team to the New England Division III Championships in 2010 and 2011; their first championships in school history.

He currently serves as an instructor in chemistry, the head of Edelman Dormitory, the Associate Director of Diversity & Inclusion, assistant coach of track and field (distance, pole vault) in the spring, and the head coach of the boys’ cross country team in the fall.  In 2021, he guided the members of the cross country team to capture the team’s first Founders League Championship and celebrated with all those who put on Bearcat Blue and ran previously. He and his wife, Linda, who is the Summer Programs Coordinator, have two daughters from the Hotchkiss classes of 2021 and 2023.