Her research focuses on the modelling, analysis and forecasting of mortality in the general population and for insured lives, and she has received both the H M Jackson and the A M Parker prizes of the Institute of Actuaries of Australia for this work. Her teaching has been recognised by two Macquarie University awards as well as a national Citation for Outstanding Contributions to Student Learning from the Australian Learning and Teaching Council. Leonie has served on a number of committees of the Institute of Actuaries of Australia in the areas of experience analysis, education, leadership and research, and on the International Actuarial Association Education Committee.