Joshua is Waanyi and Kalkadoon.
Joshua specialises in large and complex matters usually involving at least one indigenous party. His practice includes class actions (representative proceedings).
Joshua is ranked in Chambers and Partners Asia-Pacific and Doyle's Guide for his work in the native title jurisdiction.
In 2017, Joshua was the recipient of the National Indigenous Legal Professional of the Year Award and was appointed to the Board of Legal Aid Queensland.
In 2016, Joshua was recognised by Chambers and Partners Asia-Pacific as one of Australia's Outstanding Young Lawyers.
Since 2013, Joshua has been a member of the Griffith University Law School Visiting Committee. He is also a member of the Equal Opportunity Subcommittee and the Indigenous Barristers Subcommittee of the Bar Association of Queensland.
In 2013, Joshua received the Griffith University, Outstanding Arts, Education and Law, Young Alumnus of the Year Award.
In 2009, Joshua was an associate to the late Honourable Peter Dutney in the Supreme Court of Queensland.
In 2008, Joshua was awarded the Griffith University’s Rubin Hurricane Carter Award for Commitment to Social Justice.