She received a bronze medal at the 1996 Summer Olympics in Atlanta.
Her twin sister Anne Nymark Andersen is also a football player, and the two sisters played simultaneously for the national football team.
They both became world champions in 1995.
Her clubs include IL Sandviken.
After retiring as a player, she has spent four years as assistant coach at IF Fløya, leaving the club after the 2005 season.
In the 2008 season, Nymark Jacobsen coached the club Fløya, first together with Rune Repvik, and later with coach Rune Brustad.