At the age of 13, he was released from Internacional's youth program and moved to Juventude in Caxias do Sul.

After a year, he moved back to Porto Alegre and joined the Grêmio's youth academy.

[1] Klauss signed for his first European club in January 2017, when he moved to TSG Hoffenheim in Germany.

[4] Klauss joined Major League Soccer side St. Louis City SC in July 2022, following his loan at Sint-Truiden.

[5] On February 25, 2023, the opening match of the MLS season, Klauss scored the final goal in a 3–2 victory over Austin FC, the first win in St. Louis's franchise history.