[4] After posting a highlight reel on Instagram, he caught the attention of his future player agent, who informed him that Canadian Premier League club York9 was interested in him.

[7] In December 2020, he returned to the TFC system, signing with Toronto FC II of USL League One for the 2021 season.

[13][14][15] On July 14, 2024, he became the all-time appearance leader for Toronto FC II, with his 85th cap across all competitions.

[22] In January 2025, Altobelli signed a one-year contract with an option for 2026 with his former club York United FC (previously York9) of the Canadian Premier League.

[24][25] He scored in a penalty kick shootout victory against Costa Rica U17 in the quarter-finals of the CONCACAF tournament which qualified the team for the U17 World Cup.