Early career Melkersen played in his native Norway with
Bodø/Glimt,
Hødd and
Ranheim. His transfer was delayed due to work permit issues. Melkersen and Norwegian compatriot
Runar Hauge made their Hibernian debuts on 2 March 2022, both appearing as substitutes. Following the match, and a later injury to
Kevin Nisbet, Hibernian manager Shaun Maloney praised Melkersen's hard work and told him to 'step up' to first-team football. On 13 March 2022, Melkersen scored a brace in his first start for Hibernian, both proving decisive in the club's 2–1 win in the
Scottish Cup quarter-finals against
Motherwell. Melkersen moved on loan to Dutch club
Sparta Rotterdam in January 2023. He returned to Hibs at the end of the 2022–23 season, and made a few appearances early in the 2023–24 season before moving on loan to
Strømsgodset.
Stromsgodset The loan at
Strømsgodset was successful, as Melkersen scored four goals and their manager
Jørgen Isnes said he wished to sign the player permanently. A deal was agreed in December 2023, with the Norwegian club paying £1.2 million for the transfer. Melkersen signed a five-year contract with Strømsgodset. ==International career==