Career
Club
He is a trainee of Jantar Pruszcz Gdański. Bąk is known as a symbol of the "new" Lechia Gdańsk, being the only player who stayed with the team from its early promotions from the A-class (6th division) in 2001/2002 season all the way to the Ekstraklasa in the 2007/2008 season. In July 2011, he joined Podbeskidzie Bielsko-Biała on a two-year contract.
Bąk joined A PFG club Etar 1924 in early 2013.
He has been the second choice goalkeeper and made his official debut on 10 April 2013, in the 1:6 away loss against Litex Lovech. On 20 April, the Pole made his first start for Etar, but was sent off during the second half in the 0:3 away defeat against Loko Plovdiv.