Blizzard Entertainment CFO Amrita Ahuja is leaving the maker of “World of Warcraft” to join fintech company Square as finance chief. Ahuja was promoted to CFO of Blizzard Entertainment in March 2018 after serving in a variety of roles at the Activision Blizzard over the previous eight years. A Harvard Business School graduate, Ahuja served as director of business development for Fox Networks Group before joining Activision Blizzard as vice president of strategy and business development in June 2010. She became VP of finance and operations in August 2012 and senior VP for investor relations in January 2015.