In 2023, Zeppieri began attending York University, where he played for the men's soccer team.[1] In the first game of the 2023 season on September 1, he scored the tying goal via a penalty kick in a 1-1 draw against the Laurier Golden Hawks.[2] In his rookie season, he was twice named the York Lions Athlete of the Week.[3][4] He helped York advance to the OUA final, but missed the final due to suspension, after earning a second yellow card in the semi-final after removing his jersey in celebration after scoring a goal.[5] At the end of his rookie season, he was named the OUA West MVP and an OUA First Team All-Star,[6][7] and was also named a U Sports First Team All-Canadian.[8] He was also name the school's Male Athlete of the Year for 2023-24.[9]
At the 2024 CPL-U Sports Draft, Zeppieri was selected in the first round (fourth overall) by York United FC.[12][13] In April 2024, he signed a U Sports contract with the club, allowing him to maintain his university eligibility.[14] In August 2024, he departed the club to return to university, with the club retaining his rights for the 2025 season.[15]