Signed by Livingston after a freshman college season at DePaul Blue Demons in his native United States.
[18] On 29 May 2023, Livingston announced Brian Schwake had been offered terms for a new contract but he declined, ending his tenure with the team.
[21] In his third Copa del Rey match against La Liga club and the previous season's runners-up Osasuna on January 7, 2024, Schwake made ten saves and was named to Fútbol Total's Team of the Round (Osasuna eventually prevailed 1–0 after extra time).
[22] On March 1, 2024, CD Castellón announced they reached an agreement to renew the American goalkeeper until 2025.
[23] On January 23, 2025, Castellón announced the transfer of Schwake to Major League Soccer side Nashville SC.