Dr Cubillo is a (Larrakia and Wadjigan) First Nations Senior Research Fellow within the Wellbeing & Preventable Chronic Diseases (WPCD) Division at Menzies. 

Cubillo has expertise and experience in research related to Indigenous nutrition, health, and wellbeing in addition to qualitative and Indigenous Research Methodologies. Cubillo's research is primarily focused within the Northern Territory and has emphasised community engagement, reciprocity and translation to community programs and policy. Research undertaken by Cubillo has focused on conceptualising how nutrition, health and wellbeing in connected to Indigenous food systems from Indigenous perspectives. Cubillo also leads programs of research on the Indigenous commercial determinants of health.

Cubillo is a current member of the Coalition for Healthy Remote Stores that has successfully advocated for research evidence on best-practice for healthy remote stores to be adopted into the NT Remote Stores Program.  Cubillo has previously served on the Medicine, Nursing, Health Science, Health Equity, Education Committee at Monash University, the Global Indigenous Food System hub and the Indigenous Engagement Working Group chaired by the Pro-Vice Chancellor (Indigenous) at Monash University.

Cubillo is an Investigator on Fisheries Research Development Corporation and NHMRC grants totalling over $5 Million. Dr Cubillo holds adjunct Research Fellow positions with the School of Social and Health Development at Deakin University and the Department of Nutrition, Dietetics and Food at Monash University.