 Stewart then worked with Ian McCall at Ayr United, and took temporary charge of the team after McCall left to manager Partick Thistle.Stewart's son Scott (born 1996) is also a footballer who played over 150 games for Airdrieonians from 2013 before joining Arbroath in 2019.He initially began his career as a midfielder but retrained as a full-back, which he stated drew more scrutiny on his performances from his father due to his experience in the role.