Based in New Zealand, Clarence started his career as an educator and joined ACG as the founding principal of ACG Parnell College in 1999. He became the founding Executive Principal of ACG Strathallan in 2001, creating a school widely reputed for its academic achievement and personal development for all students. In 2003, Clarence took on the additional role of ACG Group Principal and has held senior executive positions at ACG since 2006, where his key responsibilities were to drive educational performance and business growth forward.
Clarence managed the merger of the two ACG joint venture schools in Vietnam, forming Australian International School (AIS). Clarence was appointed General Director of AIS in 2013, and in 2016 he became CEO of Schools & Early Learning. In this role, Clarence oversaw all ACG Schools and Early Learning Centres, placing particular focus on academic quality management and business growth.