She worked in a number of roles at Imparja Television, the ABC, SBS, and NITV, including executive editor of news and current affairs.
[2][9] She said upon the appointment:[8]A particular focus will be the work being carried out as part of the Coalition of Peaks, ensuring we are partners in the decisions taken at all levels of government that directly impact on our children and our futures.
If we are to close gaps in disadvantage, consideration of the impact on our children must be front and centre when policies and programs are developed and implemented.
[10] In August 2021, she was appointed to the board of Girls from Oz (G-Oz), which aims "to improve educational and employment outcomes for girls and young women in remote parts of Australia"[11] through delivering performing arts programs to female school students of all ages, and awarding successful applicants travel programs to capital cities, where they are offered further opportunities.
[13] In April 2023, Liddle was a keynote speaker at the Melbourne School of Population and Global Health's inaugural Gathering the Seeds Symposium in Perth, Western Australia.