Gyumi is the founder and executive director of Msichana Initiative (Young Woman Initiative), a Tanzanian nongovernmental organization that empowers girls through education.
Gyumi ni olùdásílẹ̀ àti alákòóso àgbà Msichana Initiative (Ètò fún àwọn Ọ̀dọ́mọbìnrin), iléeṣẹ́ tí kì í ṣe tìjọba tí ó ń ró àwọn ọmọdébìnrin lágbára nípasẹ̀ ti ẹ̀kọ́ ìwé.