He currently plays for SC Telstar, wearing the number 37 shirt. He plays primarily as a Forward. His preferred foot is Right. His current market value is estimated at 800K €.

His most recent move was a Loan from SC Telstar to AZ Alkmaar Youth on 2026-06-29.

In the Netherlands Eredivisie 2025-2026 season, S. van Duijn scored 1 goals and provided 0 assists across 6 appearances, averaging 0.2 goals per game with 4 shots attempted and 1 on target.