Ms Ellerton is a career officer with the Department of Foreign Affairs and Trade and was most recently Acting Director, Border Policy and Strategy Section, COVID-19 Coordination Unit. She has previously served overseas in Honiara. In Canberra she has served in a range of development and aid governance related roles.

Ms Ellerton holds a Graduate Diploma of Education; a Bachelor of Engineering (Honours); and a Bachelor of Commerce, from Monash University.