Working at Adelaide University as an academic advisor, he enrolled for a Masters degree in Creative Writing and wrote plays. His work Love, Land and Money was later produced for the 2002 Adelaide Fringe Festival. After having poems and short stories published in several anthologies, he started focusing on novels, and his first novel, Sweet Guy was shortlisted in the Victorian Premier's Literary Awards in 2006 and the Festival Awards for Literature. As lecturer of Communication and Literature at the University of South Australia's David Unaipon College of Indigenous Education and Research, Thomas enrolled for his PhD in Creative Writing, which he completed in 2011. He has coordinated Nukunu People's Councilcultural heritage, language, and arts projects. He was Arts Development Officer, Aboriginal and Torres Strait Islander Arts at Arts SA in 2018, and is an ambassador for the Indigenous Literacy Foundation. In May 2018 Thomas began a 12-month secondment as William and Margaret Geary Curator of Aboriginal and Torres Strait Islander Art and Material Culture at the South Australian Museum. In this role he curated the Yurtu Ardla exhibition from March to June 2019. In September 2019 he was awarded a Churchill Fellowship, in order to travel to New Zealand, the US, Canada and Norway, "to investigate colonised people's interpretative strategies in permanent gallery displays". In 2020, Thomas was employed as Indigenous consultant on two ABC Television series, Stateless and Operation Buffalo.
Works
Novels
Plays
Love, Land and Money
Flash Red Ford - toured Uganda and Kenya, performed by a Ugandan company.
Awards
Sweet Guy — 2002, shortlisted, Festival Awards for Literature : Award for an Unpublished Manuscript; 2006, shortlisted, Victorian Premier's Literary Awards: Prize for Indigenous Writing
Calypso Summer — 2013 winner, black&write! Indigenous Writing Fellowships; 2014 — shortlisted, Victorian Premier's Literary Awards: Prize for Indigenous Writing; winner, International White Raven award in 2015, selected by the International Youth Library in Munich, Germany, "given to books that deserve worldwide attention because of their universal themes and/or their exceptional and often innovative artistic and literary style and design".
Patty Hits the Court: Game Day! — 2018, shortlisted, Speech Pathology Australia Book of the Year Awards: Best Book for Language Development, Indigenous Children