He won a brand new Holden Jackaroo, which his parents sold in order to move out of a Doonside housing commission and into their own home in Mount Druitt.

Commentator Peter Sterling named Austin as one of the bargain buys of the season, saying it was "obvious he’s a natural footballer with good skills and an ability to play what’s in front of him.

[14][15] Austin entered the Canberra side as a starting line-up five-eighth and was selected to play the first game of the season against the Cronulla-Sutherland Sharks.

[16] At the start of 2018, Canberra lost their opening 4 games of the season and as a result Austin was demoted to reserve grade by coach Ricky Stuart.

[17] On 24 June 2018, it was reported that Austin had rejected a contract extension with the club which was confirmed by Canberra's recruitment manager Peter Mulholland.

[18][19] On 9 July, Austin signed a three-year deal to join English side the Warrington Wolves[20] On 12 August 2018, Canberra were trailing the Wests Tigers 22-20 with three minutes left in the game.

Austin was part of the Warrington side which finished 4th during the Super League XXIV season but were eliminated in the first week of the finals series by Castleford 14-12.

[23] In round 2 of the 2022 Super League season, Austin made his club debut for Leeds in their 34-12 loss against Wigan.

[24] On 24 September 2022, Austin played for Leeds in their 24-12 loss to St Helens RFC in the 2022 Super League Grand Final.

[25] In round 3 of the 2023 Super League season, Austin kicked a drop goal with seconds remaining as Leeds won a controversial match over St Helens 25-24.

[26] On 3 August 2023, it was reported that Austin had joined Yorkshire rivals the Castleford Tigers on loan for the remainder of the 2023 season.

[35] Having suffered a foot injury early in 2013, Austin volunteered to coach the under 16 Doonside Roos team, a group of boys dubbed "the uncoachables" due to their poor discipline.

[36] Austin was highly praised by the media after he drove a disabled Raiders fan to the team's game on 3 July 2016.