John David Rainey
Executive Vice President and Chief Financial Officer at Walmart
Rainey is known for providing the financial leadership behind Walmart's retail media and commerce advertising growth, leveraging first-party shopper data assets to build one of the most significant advertising businesses in the industry.
Last updated Jun 11, 2026 by ATDb automated enrichment
John David Rainey serves as Executive Vice President and Chief Financial Officer of Walmart, where he plays a central role in the financial stewardship of one of the world's largest retailers and a rapidly expanding retail media powerhouse. In this capacity, Rainey oversees the financial strategy underpinning Walmart Connect, the company's advertising business, which has grown into a multi-billion-dollar retail media network competing directly with Amazon Advertising and other major players. His influence on Walmart's investment in data-driven advertising, first-party data monetization, and commerce media infrastructure makes him a significant figure in the broader AdTech and retail media ecosystem. Before joining Walmart in 2022, Rainey served as Executive Vice President and CFO of PayPal, where he was instrumental in scaling the company's financial operations during a period of significant growth in digital payments and commerce. His tenure at PayPal gave him deep expertise in the intersection of payments, data, and digital commerce — capabilities that are increasingly central to retail media's value proposition. Prior to PayPal, he held senior finance roles at United Airlines, where he served as CFO and helped lead the airline through complex financial restructuring and operational transformation. Rainey's background spans large-scale consumer-facing businesses with complex data and technology components, positioning him as a key architect of Walmart's ambitions to monetize its massive first-party shopper data through advertising. As retail media continues to reshape the AdTech landscape, Rainey's financial leadership at Walmart places him at the intersection of commerce, data, and advertising investment at an unprecedented scale.
Executive Vice President and Chief Financial Officer
PayPal (2019-2022)
Executive Vice President and Chief Financial Officer
United Airlines (2016-2019)
Senior Vice President, Finance
United Airlines (2013-2016)
- MBA, University of Mississippi
- Bachelor of Accountancy, University of Mississippi
- Joined Walmart as CFO in 2022, helping accelerate Walmart Connect's growth into a top-tier retail media network
- Served as CFO of PayPal during a period of significant digital commerce and payments expansion
- Oversaw financial strategy at United Airlines during major operational and balance sheet transformation