Kammala wannan jumla: Steen ya lashe lambar yabo a kowane matakin junior. Ya fara wakiltar Sweden a gasar cin kofin duniya ta 2015 U-17 Hockey Challenge inda ya lashe lambar tagulla. Ya fara buga gasar cin kofin duniya ta IIHF U20 a
2018 ta lashe lambar azurfa bayan ta yi rashin nasara ga Kanada a wasan karshe.