Career
He also played for Lyn and Strømmen. He was nicknamed "Maler"n" ("The Painter") because he worked as a housepainter outside football. Amundsen made his top level debut for Lyn in 1972.
He joined Lillestrøm ahead of the 1977 season.
He retired after the 1989 season, having played a total of 459 first-team matches (including friendlies) in his career.