On May 9, 2022, it was announced that Spieker had been signed by the Montreal Alouettes.[2] Following training camp, he began the 2022 season on the practice roster.[3] He played in two games in 2022, starting in the final game of the regular season, where he had six receptions for 105 yards and one touchdown.[4]
In 2023, he played in 12 regular season games, starting in ten, where he had 33 receptions for 389 yards and one touchdown.[5]