Zamanian started her senior career representing Göteborgs DFF. After playing for
Kopparbergs/Göteborg in the
Damallsvenskan, Zamanian began playing for
Paris Saint-Germain in 2018. She has featured for PSG in the
2018–19 UEFA Women's Champions League knockout phase. On 2 January 2020, Zamanian joined
Serie A champions
Juventus. She renewed her contract in June 2020 after a successful start to
the season, which included a goal in her debut match on 12 January 2020. On 25 June 2020, Juventus became league champions. In January 2023, Zamanian joined
Fiorentina on loan until the end of the season. She made her debut for Fiorentina on 28 January 2023 against
Pomigliano and scored her first goal for the club in the following match against
Sampdoria while being subsequently named in the league's team of the week for her performance. Zamanian moved to
Sassuolo for the 2023–24 season, helping them finish in fourth position, and was transferred to
Sampdoria at the start of the 2024–25 campaign. ==International career==