He trained with Warriors during the 2024/2025 season.
Aberdeenshire born Stephen started playing rugby a Garioch RFC at the age of six.
He played for his school team Glenalmond College before having his first taste of adult rugby at Aberdeen Grammar Rugby.
In 2023, Seb represented Scotland U18 in the 2023 U18 Six Nations festival before travelling to New Zealand to play for University of Waikato. He returned to Scotland to play for Scotland U20 in the 2024 World Rugby U20 Trophy.
Stephen’s first try in Glasgow Warriors colours came in December 2025, touching down against Edinburgh at Hampden Park.
His first senior Scotland call-up came in March 2026, after being added to the squad ahead of the final two matches in the Guinness Six Nations.