Mariuz holds a degree in Law and International Relations with a Master's degree in Latin America. She has had a career focused on positive impact that ranges from academia to civil society, to consulting and for a decade she has specialized in the financial sector directing ESG and Sustainable Finance strategies at Citibanamex, Grupo Financiero Banorte, HSBC Mexico and Latin America and now as Chief Sustainability Officer of Banco Santander Mexico. She chaired the ESG Committee of the Mexican Stock Exchange and today chairs the ESG Commission of the Mexican Banking Association. She was part of the Founding Group of the United Nations Principles for Responsible Banking and global Co-Chair in the creation of the TNFD related to nature risks. She is one of the 50 Women to Watch for Global Boards 2024, is part of The Legal 500 Green Powerlist and Top Voice on LinkedIn in Corporate Sustainability.