During the 2010 season he was assistant coach of Ranheim in the First Division, in a coaching team including Per Joar Hansen and Otto Ulseth.
He was born in Ranheim, Strinden as a son of estate owner and politician Lauritz Jenssen (1837–1899) and Jørgine Wilhelmine Darre (1842–1910).
Ranheim's head coach Per Joar Hansen and assistant coach Otto Ulseth was not happy with the loss of one of their best players in the last minute, and claimed that Rosenborg had no respect for their club.