[7] On August 8, 2021, Pacius signed with Canadian Premier League club Forge FC.

[25][26] In October 2023, despite missing out on the CPL play-off final due to an injury,[27] he was a part of the Forge squad that won their fourth league title, following a 2–1 win over Cavalry FC.

[28] In December, Pacius announced that he was leaving the club after two and a half seasons, upon the expiry of his contract.

[31] On February 15, 2024, Pacius signed as a free agent with Major League Soccer club Nashville SC on a two-year contract, with options for the 2026 and 2027 seasons.

[2][32] He made his debut with the second team, Huntsville City FC, in MLS Next Pro on June 8, scoring his first goal.

[35] In January 2025, Pacius was loaned to the Tampa Bay Rowdies in the USL Championship for the 2025 season.