Career
She currently (2012) plays for Vålerenga in the Toppserien. She has appeared nine times for the national team since her debut on March 11, 2006 in a match against Finland. On June 9, 2008 Nilsen was named to the Norwegian roster for the 2008 Summer Olympics to be held in Beijing, China.
Nilsen left Olympique Lyonnais in July 2010 and returned to Norway to work as a hairdresser with no plans to continue in football.
In autumn 2011 she played a further two matches for Arna-Bjørnar. In January 2012 she joined the newly promoted Toppserien club Vålerenga, trained by her former Kolbotn teammates Cecilie Berg-Hansen and Solveig Gulbrandsen.
Her new contract allows her flexibility to continue working outside football.