He is a son of former goalkeeper Espen Granli, and hails from Lier. After starting his youth career in Lier he went on to Bærum and Stabæk. He made his senior team debut in April 2013, when Stabæk was languishing in the First Division, in a match against Kongsvinger. He subsequently signed the professional contract. Stabæk was promoted, and he made his first-tier debut in March 2014 against Sogndal.