What Happened to Fidji Simo?

Fidji Simo's career trajectory showcases a remarkable ascent through the ranks of the technology industry, marked by significant leadership roles and a recent pivot influenced by personal health. Born in Sète, France, Simo was the first in her family to graduate high school and earned a master's degree from HEC Paris. She began her career at eBay from 2007 to 2011, focusing on local commerce and classified-advertising initiatives.

Her decade at Facebook (now Meta) from 2011 to 2021 was a period of rapid growth and influence. Starting in product marketing, she transitioned to product management in 2013, quickly rising to Director of Product in 2014 and Vice President of Product in 2017. Simo was instrumental in developing and monetizing key features like News Feed, Stories, Facebook Live, and Facebook Watch, overseeing the company's video strategy and mobile advertising business. She also co-founded Women in Product, a non-profit dedicated to advancing women in product management.

In January 2021, Simo joined Instacart's board of directors and was appointed CEO in August 2021, taking the helm of a company experiencing a post-pandemic slowdown. Under her leadership, Instacart diversified its offerings beyond grocery delivery to include click-and-collect, in-store services, and advertising. She successfully led Instacart through its highly anticipated initial public offering (IPO) in September 2023, breaking a significant tech IPO drought and valuing the company at $9.9 billion. During her tenure, she also launched Instacart Health and acquired Caper Cart, an AI-powered shopping cart.

Simo's journey took a new turn in March 2024 when she joined OpenAI's board of directors. In May 2025, she announced her departure from Instacart's CEO role (remaining Board Chair) to become OpenAI's first CEO of Applications, a position later titled CEO of AGI Deployment, starting in August 2025. In this role, she was tasked with commercializing OpenAI's research, focusing on product development, business operations, and integrating various AI tools into a unified 'superapp.' Key initiatives under her leadership included the January 2026 launch of ChatGPT Health and an increased focus on coding and enterprise users.

However, Simo's career has also been shaped by personal health challenges. Diagnosed with Postural Orthostatic Tachycardia Syndrome (POTS) in 2019, a neuroimmune condition, she co-founded the Metrodora Institute (which ceased clinical operations in July 2025) and later ChronicleBio and the Complex Disorders Alliance (CODA) to advance research into neuroimmune disorders. In April 2026, Simo announced an extended medical leave from OpenAI due to a worsening of her condition. As of July 9, 2026, she has transitioned to a part-time advisory role at OpenAI to prioritize her health and recovery, with Greg Brockman overseeing product strategy in her absence.