He debuted in the FIS Ski Jumping World Cup in 2015, and got his best result win the World Cup event in Kuusamo/Ruka in November 2020. Granerud was part of the team that won the FIS Junior World Championship in 2015, together with Joacim Ødegård Bjøreng, Phillip Sjøen and Johann André Forfang. From the 2018–19 season, he's been a part of the national team.