Thierry was educated in France and began his teaching career in 1993 at Mount Kelly in Devon as a French teacher and Assistant Housemaster. He moved to Pangbourne College in 1999 to take up the post of Head of French prior to his appointment as Head of Modern Languages and EAL at St John’s School, Leatherhead, where he also served as Master in Charge of Hockey and Tennis.
In 2010, Thierry arrived at Marlborough where he has held various positions including Head of Department, Director of Teaching and Learning, and Acting Deputy Head (Academic). He was appointed Assistant Head (Inspection) in 2020. Thierry has coached a number of sports and completed an MBA in Education at Keele University.