Tjäder competed in slopestyle at the FIS Freestyle World Ski Championships 2013, and he represented Sweden in slopestyle at the 2014 Winter Olympics in Sochi, where he finished 24th. At the 2013–14 FIS Freestyle Skiing World Cup, Tjäder won the overall slopestyle cup and placed third overall. Tjäder returned to the Winter Olympics for 2018 in PyeongChang, where he placed 23rd in the slopestyle competition.