She began her career after winning Idol 2014,[2][3][4][5][6] and is also known for her five Melodifestivalen participations, having qualified to the final on four occasions.

She again qualified to the Second Chance round from the fourth semi-final and went on to the final, where she finished in ninth place.

[11] In 2021, Ajax released her first Swedish-language solo single, "Jag måste", co-written with and Anton Engdahl, Marcus Holmberg.

[12] She participated in Melodifestivalen 2022 with the song "Tror du att jag bryr mig" with Niello.

[16] Ajax is in a relationship with fellow musician Max "Klockrent" Huss, three years her senior.