| Head of Department, 1993-1996, 2003-2005 |
| Member, Academic Senate, 2006 |
| Associate Editor (Number Theory), Journal of the Australian Mathematical Society, 1994-2006 |
| Programme Director, Discrepancy Theory and its Applications, Mathematisches Forschungsinstitut Oberwolfach, 2004 |
| Conference Director, 50th Annual Meeting of the Australian Mathematical Society, 2006 |
| Co-Organizer, Workshop on Discrepancy Theory and Related Areas, Villa Cipressi, Varenna, 2007 |
| Co-Organizer, Workshop on Small Ball Inequalities in Analysis, Probability, and Irregularities of Distribution, American Institute of Mathematics, 2008 |
| Member, Programme Committee, Uniform Distribution Theory 2010, Strobl am Wolfgangsee, 2010 |
| Member, Programme Committee, and Plenary Speaker, MCQMC 2010, Warsaw, 2010 |
Member, Australian Mathematical Society Medal Committee, 2006-2008, and Chair, 2007 |