After starting the Raptors final games of the season, Austin was able to gain the attention of the Pittsburgh Power of the Arena Football League (AFL).
Austin was named the starting quarterback for the Power, but a broken hand caused him to miss two months of the season.
The Gladiators lost to Arizona Rattlers in the ArenaBowl, but Austin was named second-team All-Arena.
As a junior, Austin split time with Chris Gagua, completing 52-of-81 passes with five touchdowns and three interceptions.
[8] He was signed by the Everett Raptors of the Indoor Football League as an undrafted free agent in 2012.
[9] Austin joined the 2–5 Raptors at the midway point of their season after starting quarterback Blake Bolles had signed with the Minnesota Vikings for training camp, and received just one practice with the Raptors before he was thrust in to the starting quarterback role.
[13][14] Austin was assigned to the Pittsburgh Power of the Arena Football League (AFL) for the 2013 season.
Austin served as the team's backup quarterback for the first 16 weeks of the season, appearing in 3 games.
[15] Austin would not see the field again until he was named the starting quarterback Week 17 against the San Jose SaberCats.
By losing by 58 points, the Power set an AFL record margin of victory for a home loss.
[27] He earned CAFL Offensive MVP and All-Pro South Division All-Star honors in 2016 after completing 121 of 191 passes for 1,436 yards, 35 touchdowns and 5 interceptions.