Schirnack played his first football with Te Aroha Eels before becoming a Newcastle Knights junior.

[3] Returning to the NSW Cup with Balmain Ryde-Eastwood, Schirnack was involved in an incident where a piece of his ear was bitten off during a scuffle with an opposing player.

[4] Near the start of the 2011 season, Schirnack made another 2 appearances from the bench, which were to be his last for the Wests Tigers club.

He signed with the North Queensland Cowboys in October 2011, and played for their feeder team the Mackay Cutters in 2012.

In 2015, Schirnack signed with the Canterbury Bankstown Bulldogs to play in their NSW Cup side.