Jens was born in
Narvik Municipality, Norway and grew up in
Evenes Municipality. His first instrument was the piano before he moved on to guitar at the age of 10. First band experience was through the local youth club which led to the first concert already at the age of 14 in front of 400 kids at the festival Rock Mot Rus March 1989. In 1991, he and some friends formed Gangland, a '70s and '80s hard rock cover band. They did several gigs in the two-year period they were together, among these performing at Rock Mot Rus both in 1992 and- 93. The band was disbanded as Jens joined the airforce. Jens joined
Borknagar in 1997. He technically left the band in 2003, but performed at all concerts between 2003 and 2007. In this period Borknagar recorded Epic and Origin without Jens' participation. He formally rejoined again in 2007 and participated in the recording of
Universal. Jens further participated on Urd and Winter Thrice before departing in January 2018. In 2011, Jens joined the solo project of
ICS Vortex and was a part of the lineup for about a year. == Inferno Festival ==