He currently plays for Unionistas de Salamanca CF, wearing the number 30 shirt. He plays primarily as a Forward. His current market value is estimated at 50K €.

His most recent move was a from Free player to Unionistas de Salamanca CF on 2024-08-17.

In the Primera Federación 2024-2025 season, Steffan Witmer scored 0 goals and provided 0 assists across 17 appearances, averaging 0 goals per game with 0 shots attempted and 0 on target.