Stu’s career at MIT began in 1982 when he enrolled as a freshman. Following his graduation in 1986 with a degree in mechanical engineering, Stu spent a year designing cars at General Motors before returning to his alma mater in a professional role. During his long tenure at MIT, Stu has served the Institute in a variety of positions, including Director of Crew; Director of Parent, Student, and Young Alumni Programs in the Alumni Association; Director of MIT's Educational Council; and Senior Associate Director of Admissions. He joined the admissions office in 2002, was appointed Interim Director in 2007, and Dean in 2008.

Stu has been honored with the MIT Dean for Undergraduate Education Infinite Mile Award for Leadership and the MIT Alumni Association Harold E. Lobdell '17 Distinguished Service Award. He was named Coach of the Year in the Eastern Association of Rowing Colleges, the most competitive rowing league in the country, and has won numerous medals as a coxswain in the Head of the Charles Regatta.

Stu has been a speaker at admissions conferences around the world, including for the National Association of College Admission Counseling (NACAC) and the Council for the Advancement and Support of Education (CASE). From 2005-2008, Schmill served as co-president of the New England Coordinators of Alumni Admissions Programs (NECAAP).

Beyond the MIT campus, Stu has served as trustee, founder, or advisor to a variety of organizations, including the College Board, University of Cambridge International Examinations, Wayland-Weston Rowing Association, To The Water, Inc., and the Mandela Town Hall Health Spot.

He and his wife Debbie live in Needham, Massachusetts, and have two daughters, Sammi and Becca (MIT '22 and '24 respectively, if Stu can recruit them!).