Irwin-Hill, attended high school at Bendigo, Australia, where he practiced Australian rules football.
He started learning American football in an Academy called PROKICK Australia and one of his teammates was Tom Hornsey.
As a freshman, he was the team's punter, averaging 40.6 yards per punt, while helping the Rams win the CCCAA state title with a perfect 12-0 record.
[3] On 17 April, 2017, Irwin-Hill was signed as a free agent by the Dallas Cowboys, where he was tried at both placekicker and punter.
[6][7] In the Pro Football Hall of Fame Game against the Arizona Cardinals, he handled both punting and kicking duties.
[15] On October 8, 2019, Irwin-Hill was signed to the Atlanta Falcons practice squad, but was released three days later following an issue with his travel visa.