Professor Doreen Thomas has an outstanding international reputation for fundamental mathematical research in network optimisation. The software encapsulating her work is now used by the largest mining companies in the word to reduce underground mine development and haulage costs. She is a recognised leader in the academic community. She is a superior mentor of staff and an exceptional role model of research, education and engagement excellence at the University of Melbourne. Profesor Thomas has a national teaching award for her contribution to engineering education and mentorship and is a passionate ambassador for women in science and engineering.