- Professor and Director of eResearch, Monash University, Melbourne, Australia (since 2008)
- Agilent Thought Leader (since 2019)
- Visiting Professor, King’s College London, Faculty of Natural & Mathematical Sciences (2018-2020)
- Professor with the School of Mathematical Sciences, Monash University (since 2008)
- (Previously Department of Mathematics, and Associate Dean, Faculty of Science, University of Auckland, New Zealand)
Roles and Positions (since 2000)
- Member of Expert Committee, Shanghai AI Technology Association
- Fellow of the Institute of Combinatorics and its Applications
- Life Member, Combinatorial Society of Australasia
- National Computational Infrastructure Specialist Facility (Imaging) Steering Committee (MASSIVE)
- Victorian Life Science Computing Initiative, Steering Committee (VLSCI)
- VicNode Research Data Storage Infrastructure Allocation Committee (VicNODE)
- Program Committee of the IEEE International Conference on e-Science
- 2010-2013 CSIRO eResearch Council
- 2008-2012 Victorian eResearch Strategic Initiative Programme Committee
- 2009-2012 Board of Directors, Victorian Partnership for Advanced Computing
- 2010-2011 Expert Working Group, eResearch, Strategic Roadmap for Australian Research Infrastructure
- 2008-2009 Chair, Australian National Data Service Establishment Project
- 2008 Hummanities, Arts and Social Sciences Expert Working Group, NCRIS Roadmap Review
- 2008-2009 Board Member, ARCHER Australia’s Research Enabling Envrionment
- 2000-2007 Assoc. Professor in Mathematics, University of Auckland
- 2002-2006 Associate Dean, Faculty of Science, University of Auckland
- 2001-2006 Chief Managing Editor, Australasian Journal of Combinatorics
- 2004-2006 President Combinatorial Society of Australasia
- 2007-2008 Production Editor Australasian Journal of Combinatorics
- 2000-2007 Council Member Combinatorial Society of Australasia
- 2006-2008 Director of eResearch University of Auckland (until Dec 2007)
- 2005-2008 Director BeSTGRID
- 2007 Programme Committee Member Asia-Pacific Advanced Network
- 2007 KAREN Capability Build Advisory Panel Member
- 2007 KAREN Advisory Council Member
- 2004 Co-director NZIMA programme in Combinatorics