Jan Zwissler has played in the MyHockey League and the Swiss League since becoming a professional hockey player. He last played for EHC Frauenfeld, before that he suited up for EHC Winterthur, EHC Basel, HC Ajoie, EHC Kloten, and EHC Visp.
Last season, he recorded 23 goals and twelve assists in 30 regular-season games. He also suited up for HC Thurgau for nine games, albeit via B-license (three goals).