Facebook exec Fidji Simo named new chief of Instacart Fri, Jul 09, 2021 SAN FRANCISCO: High-ranking Facebook executive Fidji Simo put out word on Thursday that she has taken a new job as chief of Instacart grocery delivery service in the gig economy. Instacart founder and chief Apoorva Mehta confirmed the hire, saying Simo will take the Instacart helm on August 2 as he transitions to chairman of the board. "I´m so excited to join the Instacart team as CEO, and grateful to Apoorva for the trust he is putting in me," Simo said in a tweet. San Francisco-based Instacart bills itself as the leading online grocery platform in North America, its shoppers picking up groceries and essentials from nearly 55,000 stores and delivering them across more than 5,500 cities.