Bruski worked in Polskie Linie Oceaniczne (Polish Ocean Lines) in Gdynia (1986-1992) and Urząd Kontroli Skarbowej (Revenue Inspection Office) in Bydgoszcz (1994-2005).[3]
After appointed of Donald Tusk Cabinet, Bruski was nominated as Voivode of Kuyavian-Pomeranian Voivodeship ('Polish: wojewoda kujawsko-pomorski). He was a Voivode since 29 November 2007.[2]
He earned first place in the first round of the 2010 local election for President of Bydgoszcz, winning 43.28% of the votes and advanced to the second round, which took place on 5 December 2010.[5] In the second round of voting Bruski won 59,17% of the votes, winning the election with the incumbent Konstanty Dombrowicz, who won 40,83% of the votes.[6] In 2014 he successfully applied for re-election, defeating his predecessor in the second round of voting, winning 57.11% of the votes.[7]