Vorontsevich made his professional debut with Lokomotiv Novosibirsk during the 2005–06 season.

[citation needed] In the 2014–15 season, he was named the VTB United League Defensive Player of the Year, and the VTB United League Playoffs MVP.

[citation needed] On July 1, 2020, after 14 seasons, Vorontsevich and CSKA parted ways.

[1] On March 3, 2021, he signed with Nizhny Novgorod of the VTB United League.

[citation needed] Vorontsevich has been a member of the senior Russian national basketball team.