He was the Vice-chairman of the Progress Party"s Youth from 2012 to 2014. After the 2015 local elections, Tørrissen was elected into the Bærum municipal council. On the national convention of the Progress Party"s Youth in 2012 he was elected vice-chairman, after having served a variety of positions previously including election campaign manager.
Prior to the 2014 National Convention he announced that he would not seek re-election as he was entering a position as Communications Adviser for the Progress Party"s Parliamentary Group.
He previously held an internship with the Confederation of Norwegian Enterprise. Tørrissen is currently serving as Communications Advisor for the Progress Party at the Storting.