SAN FRANCISCO — Carolyn Everson has been named president of Instacart, effective Sept. 7. Ms. Everson will succeed current president Nilam Ganenthiran, who has been promoted to strategic advisor to the chief executive officer, Fidji Simo. 

In her new role, Ms. Everson will oversee Instacart's Retail, Business Development and Advertising businesses, as well as the company's People, Policy & Government Affairs, Legal, Partnerships, Instacart Pickup and Care teams. She will report directly to Ms. Simo.

Ms. Everson joins Instacart from Facebook, where she spent the last decade. She most recently was vice president of global marketing solutions for Facebook. Prior to that, Ms. Everson was corporate vice president of Microsoft's global advertising sales and trade marketing teams, where she led the company's advertising business across Bing, MSN, Windows Live, mobile, gaming, Atlas, and the Microsoft Media Network. Earlier in her career, Ms. Everson was chief operating officer for Viacom, vice president for Primedia, vice president of business development for Zagat Survey, manager of business development for Walt Disney Imagineering and an analyst for accenture.

"I've had the privilege of working with Carolyn for a decade and know just how lucky we are to have her leadership and talent at Instacart," Ms. Simo said. "Carolyn's an industry legend, best known for cultivating strong, trusted relationships that drive strategic value for partners. At Instacart, partnerships and relationships are at the heart of everything we do. With more than 600 retail partners and thousands of advertisers helping power our marketplace, Carolyn's unmatched experience and authenticity will be a key driving force for our business as our teams prepare for our next chapter of growth."