From 2012 until 2019, Trałka represented Lech Poznań, where he celebrated his biggest successes, including winning a title in the 2014–15 season. He also served as the team's captain from 2014 until 2017 and briefly in 2018.[3]
He made the final appearance of his career on 14 May 2022 in a 1–2 loss in the Poznań derby against his former club Lech, and was substituted in the 1st minute to a guard of honour from both teams.[6]