He is on the books of Thor KA Akureyri Women and wears shirt number 7. His main role on the pitch is Forward.

During the Iceland Besta-deild kvenna 2025 campaign, Amalia Arnadottir made 10 appearances, scoring 2 goals and adding 0 assists. He averaged 0.2 goals per match from 0 shots, with 0 on target.