Maritza joined the Oxfam team as project officer of the active citizenship and gender justice programme in 2003. Five years later, she became the coordinator of the Gender Justice Program and in 2016, with the process of transition to a single program, assumes the coordination of this single programme (IGUALES).
Maritza has been part of gender justice and regional groups and has contributed in regional spaces to the formulation of documents in her areas of competence of Active Citizenship and Gender Justice. Maritza's experience includes long term work for gender justice, promotion of the rights of women's political and economic rights. She comes from experiences working with UNICEF and State institutions such as the National Institute for Women, among others. She has a Masters degree in Gender and Public Policy from the Latin American Social Sciences Institute (FLACSO).