· Chief Research Scientist, CSIRO Data612017–
· Senior Principal Research Scientist, CSIRO1996–2017
· Principal Research Fellow, Information Technology Research Institute (ITRI), University of Brighton1993–1996
· Assistant Research Professor, University of Southern California (USC)1992–1994
· Project Leader, University of Southern California/Information Sciences Institute (USC/ISI)1990–1994
· PhD, Computer Science (Computational Linguistics), Columbia University1987–
· Senior Research Scientist, University of Southern California/Information Sciences Institute (USC/ISI)1987–1990
· M.S, Computer Science, Columbia University1982–
· Research Assistant, Columbia University1981–1987
· B.A., Computer Science (Honours), University of California at Berkeley1980–