2004 - present. Director of ResearchSchool of Surveying and
Spatial Information Systems, UNSW.
1995 - 2004: Lecturer/ Senior Lecturer/ Senior Academic in
Department of Electronic Systems, University of Westminster, London,
UK.
1988 - 1992: Employed by Auspace Limited, Canberra,
Australia. System Engineer and Project Manager on the development of a
GPS receiver.
1985 - 1988: Engineer at STC, Sydney, Australia. Designing
telecommunications equipment for telephone exchanges.