Managerial positions 

University of Pretoria, South Africa (from 2000):

• Dean: Faculty of Natural and Agricultural Sciences from March 2015
• DST/NRF SARChI Chair: Mathematical Models and Methods in Bioengineering and Biosciences from 1 August 2013
• Head of the Department of Mathematics and Applied Mathematics from 1 October 2004 - 31 July 2013 
• Chairperson: School of Mathematical Sciences from 1 January 2005 - 31 December 2009
• Acting Chair of the School of Mathematical Sciences from 1 May 2004 – 31 December 2004
• Acting Head of the Department of Mathematics and Applied Mathematics from 1 May - 30 October 2004 and at several occasions in the past
• Member of the Senior Appointments Committee of Council from 1 May 2004
• Permanent member of the Faculty Appointments Selection Committee
• Research Co-ordinator of the School of Mathematical Sciences (1 January 2001 – 31 December 2004)
• Research Co-ordinator of the Department of Mathematics and Applied Mathematics (1 January 2001 – 31 December 2004)
• Member of the Executive Committee of the Department of Mathematics and Applied Mathematics (1 January 2001 – 31 December 2004)
• Co-ordinator of the Applied Mathematics Programme (1 January 2001 – 31 December 2004)
• Facilitator in the performance management process of the department (1 January 2001 – 31 December 2004)
• Member of the departmental library committee (1 January 2001 – 31 December 2004)
• Member of the committee for engineering courses (1 January 2001 – 31 December 2004).