As she already felt affected by social inequalities in her home country, Guinea, Halimatou got engaged in the fight against FGM, violence against women, child and forced marriage. She got her Business University degree in 2005 and started working for the German Development Agency (GIZ) as an administrative assistant, then as a FGM and Gender specialised collaborator in different projects and programmes on Reproductive Health and Women’s Rights (GIZ/PSRDF) until 2012 in Guinea. Since March 2013, Halimatou coordinates GAMS’ activities in Wallonia: she proposes medical, social and/or legal orientation to refugee and or  asylum-seeking women or families who come from a country where FGM and other gender-based violence are performed. She also is in charge of training professionals on the matter of FGM. Halimatou organises group activities with women (every last friday of the month) in Namur and in the centers for asylum seekers in collaboration with Fedasil and Red Cross workers. Last but not least, she coordinates the workshop around pregnancy, and is helped by volunteering midwives who were trained to manage the issues of FGM and other gender-based violence. This workshop helps vulnerable women (asylum-seekers or refugees) to go through their pregnancy, to prepare for childbirth and to know their body and their child’s body and how to protect it.

In 2013, Halimatou was nominated by Synergie Wallonne npo for the Théroigne de Méricourt prize for equality for her efficiency and activism in the fight for equality. In 2015, she received the Waloon Talent prize in the Social category from the Walloon Parliament in Namur.