Alessandra joined the Executive Committee on 1 March 2017.. Responsibilities: Alessandra is responsible for building the Tesco brand globally and putting the customer at the heart of everything that they do.. Skills and experience Prior to Tesco, Alessandra worked at Unilever for over 21 years, latterly as Vice President for the Food Category. in North America and Food General Manager for the USA. Previously, she had a 12-year career in advertising, working both in Italy and the UK. An international executive, Alessandra has held roles in North America, the UK, Italy and Central and Eastern Europe. e.