Prof Olivier holds a PhD in mathematics and has an extensive track record of research, teaching & learning and scholarly engagement with society. His professional career in HE started in the 1980's and he held the position of full professor and Head of Mathematics and Applied Mathematics at NMU from 2002 to 2010. From 2011 -2015 he held a national chair position in Mathematics education at NMU. This post, which was funded by DST and FirstRand Foundation, focused on research and development of practical models to assist with the crisis in mathematics education in secondary schools. In 2002 Professor Olivier also founded an engagement programme based at NMU. In 2017, this programme became the Govan Mbeki Mathematics Development Centre. The centre's focus is to promote the study of STEM subjects in secondary schools using innovative techno-blended models to support teachers and learners. An active R&D programme using Android applications and interactive digital learning materials forms a key part of the centre's approach.