A product of Garioch, Stephen spent time in New Zealand playing for University of Waikato before returning to Scotland to play for Scotland U20 in the 2024 World Rugby U20 Trophy. He started this season playing for Edinburgh Accies.
Stephen impressed during Scotland's Six Nations campaign and caught the eye of Glasgow head coach Franco Smith.
Speaking to The Offside Line, Smith said: "I think he's got a good future. We trained against the under-20s about four times in the Six Nations period. I got to know him, got to see what he's about. He's got a good frame and he's got a great work ethic, a top person, someone that will fit into the Glasgow Warriors environment.
"He's senior professional rugby-ready, I think. More than a young guy like Joe Roberts, who in the front-row position still has to improve a lot as an under-20 player. Where this guy has been down south in New Zealand, he's had a stint there with senior rugby already. So I think there's opportunity in developing him as part of our squad going forward.
"All our guys in the academy are part of our environment the whole day. They train with us most often. So yes, the idea would be to progress him as a young Scottish under-20s player. Not necessarily as a senior pro here.
"I think every year Scotland should pick up the best in the 20s and put them in environments and make sure that their progression is followed. I just think he's already somebody that we can look to and say that there's a guy that will in the long-term maybe play an important role in Scotland rugby."