Dominic worked at the University of Waikato, Hamilton, New Zealand before coming to Charles Sturt in 2008. He has over 50 refereed research publications including more than 30 refereed journal articles and book chapters and six books. He also has extensive political commentary experience for ABC Radio and has written for The Conversation, OpenForum, the New Zealand Herald, the Policy Space, Nursing Review and a number of other newspapers.

Dominic's work has had significant public policy influence. He has had work commissioned by the International Labor Organization, the New Zealand Ministry of Education and National Institute of Research Excellence for Maori Development and Advancement. The National Assembly of Québec's examination of New Zealand's electoral system draws on his work on Maori parliamentary representation and he has publications listed in the select bibliography to the report of the New Zealand Government's Constitutional Advisory Panel. His work has been cited to support proceedings in the High Court of New Zealand, the Australian Commonwealth Parliament's Joint Select Committee Report on Constitutional Recognition of Aboriginal and Torres Strait Islander People, and the Commonwealth Productivity Commission's Better Indigenous Policies: the role of evaluation. His work has been extensively cited by the New Zealand Education Review Office. It has been used to support New Zealand Ministry of Education teacher professional development programmes, the National Congress of Australia's First Peoples Education Policy and the Canadian First Nations' Schools Association's Handbook for Principals in First Nations' Schools.

Dominic has been a key note speaker to groups including the New Zealand Health Promotion Forum, the New South Wales Aboriginal Education Consultative Group, Wiradjuri Council of Elders and the New Zealand Human Rights Commission.

Dominic is a member of Charles Sturt University's Academic Senate, has served on its Human Research Ethics Committee, the Bathurst Health Council (NSW Health), the Board of Caritas New Zealand and was appointed by the Minister of Health as a lay member of the Osteopathic Council of New Zealand, where he chaired the Council's education committee. Dominic has also held senior administrative positions at Charles Sturt University and is a former school acting Principal.