She has a degree in Agricultural Economics from Reading University in the UK and completed the Program for Management Development at Harvard University.
She worked for Merrill Lynch in Spain for 18 years, until 2002.
Ms Sainz de Vicuña then entered private banking, where she was a financial consultant for 12 years, after which time she joined the brokerage house which was created following the acquisition of FG, where she was involved in the integration process and held several posts, most recently head of Operations, Systems, Human Resources and Finance.
She was subsequently appointed General Manager of Merrill Lynch International Bank's branch in Spain.
She is currently a member of the Board of Directors of Corporación Financiera Guadalmar (CFG), a family office with assets in Spain and Latin America, mainly in Argentina and Chile. She supervises the Financial Asset Committee, which manages the family's securities portfolios and investments in Chile, in the W Santiago and Awasi hotel group and, in the financial sector, in Grupo Security, where she is also a member of the Board of Directors.
In May 2014, Ms Sainz de Vicuña Bemberg was appointed Independent Director of Inmobiliaria Colonia S.A., a real estate company with office properties in Madrid, Barcelona and Paris. She is also a member of the Audit Committee.
She is a former director of Mobiel Dreams Factory, a mobile marketing and advertising agency, and of Asturbega, the Coca-Cola bottling company in northern Spain. She is currently a member of the Foundational Committee of ARPE Foundation for Art Research Partnership and Education.
She belongs to the Boards of Administración de Inmobiliaria Colonial Socimi, Corporación Financiera Guadalmar, Grupo Security, Altamar Capital Privado, Prosegur Cash, S.A. and Terold Investment.