An AIK academy product who broke into their second-tier senior side before her 16th birthday, Kafaji quickly showed her attacking prowess by scoring 12 goals in the 2020 season to help the Solna outfit to the title and promotion. The following year, Kafaji joined the senior Sweden squad for a camp in Malta and featured regularly for AIK in the Damallsvenskan before joining Häcken.
A broken leg in her first Häcken friendly in January 2022 left her out for most of the year, but Kafaji showed no ill-effects in 2023. She was Häcken's top scorer on 12 as they only missed the Damallsvenskan title on goal difference, and Kafaji has shone in her first UEFA Women's Champions League season, scoring in both her club's opening group games as they beat Paris FC (when she was named Player of the Match) and Real Madrid.
Kafaji made her senior Sweden debut at home to Italy in the UEFA Women's Nations League, coming on after 86 minutes with her side 1-0 down only for them to snatch a dramatic draw. "This is just the beginning," Kafaji warned that night