[3] Guler made 11 appearances for Canberra in the 2019 NRL season as the club reached the grand final for the first time in 25 years.

Guler played from the bench in the club's 2019 NRL Grand Final defeat against the Sydney Roosters at Stadium Australia.

Guler scored his first try in the top grade in round 1 of the 2020 NRL season as Canberra defeated the Gold Coast 24-6.

[9][10] Guler played a total of 16 games for Canberra in the 2022 NRL season as the club finished 8th on the table and qualified for the finals.

[11] Guler played a total of 25 matches for Canberra in the 2023 NRL season as the club finished 8th on the table and qualified for the finals.