[1][2] She played the entirety of her senior club career with AIK IF and served as the team's captain from 2016 until her retirement in 2022.

[8] She scored one goal and 3 points across six games in the women’s ice hockey tournament at the 2018 Winter Olympics.

She was quickly recruited into a program and became invested in officiating as she learned about the development curve and found "new goals to aim for.

[10][11] Alongside her work in Swedish leagues, Küller officiates for International Ice Hockey Federation events.

In 2011, Küller experienced a serious health scare after she accidentally received six-times the standard adult dose of morphine while being treated in hospital for a herniated disc.