Castro was the Chief Operating Officer of Yahoo. He brings more than 20 years experience leading operations, strategy, partner management and revenue generation for some of the world's leading brands. Most recently, he was vice president of Google's worldwide Partner Business Solutions group, where he was responsible for advertising platforms and services for Google's publisher and commerce partners. Prior to that, he led Google's media, mobile and platforms organization, where he helped to grow the business significantly. Prior to Google, de Castro spent two years at Dell Corporation, where he managed sales and business development operations across Western Europe. He has consulted for McKinsey & Company, where he advised numerous clients across many different industries. His career also includes senior positions in private equity and advertising businesses.