Ros is currently a Non-Executive Director of ANU Enterprise Pty Ltd, Astronomy Australia Ltd, SmartSat CRC Ltd and Science in Australia Gender Equity (SAGE) Ltd.
Other former positions include: Director of Aristocrat Leisure Ltd, Taronga Conservation Society, Structural Monitoring Systems Plc, Deputy Vice-Chancellor University of Technology Sydney, senior executive roles with Thales SA in Germany, France and Australia, and with Airservices Australia, the Australian National University, and CSIRO.