She began her career at the youth sports club Kattem IL, where she then played both football and handball. At age 13, she switched handball clubs to the Byåsen youth team, but continued to play football for Kattem. She proved to be successful in both sports, and represented Norway in the respective National Youth Teams. At age 16, she made a decision to focus her career on handball and left Kattem. Snorroeggen made her debut on the senior national handball team on 22 October 2004, and has played 102 games, scoring 224 goals before she played her last national team match on 11 August 2012 against Montenegro. Amongst her accomplishments with the national team are the Olympic gold medals that she received at the 2008 Summer Olympics and the 2012 Summer Olympics and the gold medal at the 2011 World Championships. In 2013, she retired as a professional handball player.