Career ambassador of the Ecuadorian Foreign Service. She was a member of the Third Class of the "Antonio J. Quevedo" Diplomatic Academy from 1989 to 1990. Ms. Muñoz has as law degree from the Catholic University of Ecuador, a post-graduate degree in Law & Environmental Management from the University of Adelaide in Australia, and a post-graduate degree in International Relations and Diplomacy from the University of Oxford in the United Kingdom. Furthermore, she holds a Conflict Resolution Certificate from the University of Uppsala in Sweden, among others.

Her professional experience includes the Embassy of Ecuador in Washington D.C. from 1995 to 1999, the Permanent Mission of Ecuador to the World Trade Organization in Geneva from 2003 to 2008, the Embassy of Colombia from 2011 to 2014 and the Consulate of Ecuador in The Hague from February 2015 to April 2017. In her role in the Ministry of Foreign Affairs of Ecuador she worked in the Legal Department, Human Resources Department, Environmental Department, Under-Secretary of International Organizations.

Following her mission in Geneva, Ms. Muñoz was appointed Director of World Trade at the Ministry of Foreign Affairs. Furthermore, she served in the Directorate of International Affairs in the Ministry of the Environment on secondment from 2000 to 2001. In April 2017 she became the Director of South America and from June of the same year she served as Director of the United Nations System. She currently holds the position of Under-Secretary for Multilateral Affairs. She is also a member of the Inter-American Commission of Women (CIM) Executive Committee and the Cybersecurity Innovation Councils of the Organization of American States (OAS).

In her role, Ms. Muñoz has participated in various international conferences and meetings including the Conferences of the States Parties to the Framework Convention on Climate Change and the Kyoto Protocol, ministerial meetings of the World Trade Organization; negotiations between the Andean Community and the European Union; meetings of the International Cocoa Council and Subsidiary Bodies; and bilateral meetings between Ecuador and Colombia.