Moussa has studied Business Administration and she speaks Arabic, French and English[1] in addition to Gourane, Kanembou and Gambaye.

In 1997, Moussa became the finance lead for the Agence Tchadienne d’exécution des Travaux d’Intérêt Public[2] when Youssouf Saleh Abbas was in charge.

[citation needed] In 1998, Moussa joined the office of the Prime Minister as an Advisor on Economic and Financial Affairs.

[1] In 2019, Moussa was accepted as Chad's representative by Juan Carlos Lentijo at the International Atomic Energy Agency in Vienna.

[3] In February 2020, Moussa presented her credentials as the Ambassador to Austria to Austrian Federal President Alexander Van der Bellen in Hofburg.