On her return to Cameroon, she was hired in August 1992 by the Compagnie Nationale d’Assurance (CAN), currently called Saham Assurance Cameroon. She was first nominated as technical and actuarial studies officer.
In April 2001, she joined SNAC Vie which became later Allianz Cameroun Assurance Vie where she was successively nominated executive Assistant, technical manager and deputy general manager.
N. Mongosso'o’s rich itinerary has logically been rewarded with two medals of work awarded by the Cameroonian ministry of labor in 2014 and by obtaining the "Award of Africa's Most Influential Women in Business and Government, Financial Sector».
Finally, icing on the cake, this mother of two children was promoted in September 2014 general manager of Allianz Togo, a clear testimony of loyalty and competence.