Scullion began his career in the youth academy of Hamilton Academical. He joined Airdrieonians on loan in 2016, making nine league appearances for the Diamonds.[1] He spent the rest of the 2016–17 season on loan at Bo'ness United.[2]
He left the Accies at the end of the 2016–17 season before signing for Albion Rovers in a short-term deal until the end of the 2017–18 season, making nine league appearances for the Wee Rovers.[3]
Regular football at the Sons was hard to come by for Scullion and he left the club in 2020 after 11 league appearances, scoring once. Later that year, he signed for Fauldhouse United where he played for one season before departing the club.[5]
Scullion appeared as a trialist for Whitburn in May 2023 against Thornton Hibs, scoring in the match.[6]
He signed for Clyde in July 2023, where he spent a season with the club along side brother Liam Scullion. He has now joined Albion Rovers in September 2024.[7]
Personal life
He is the brother of Clyde footballer Liam Scullion.
During the 2023-2024 season they played together at Clyde before Conor was released at the end of the season by the Bully Wee club after one season with the club.