Mastercard careers
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Mastercard runs its technology and operations out of O'Fallon, Missouri, not out of the Purchase, New York headquarters, and it owns both sites. The network authorizes, clears, and settles transactions on Mastercard-branded cards, 175.5 billion of them in 2025, and the company sells the layers built around that switch: fraud and risk tools, cardholder authentication, processing and gateway products, and an open finance platform for permissioned bank data. Its 2025 annual report counts about 39,800 employees, roughly 70 percent of them based outside the US in more than 90 countries.
HR at Mastercard runs an annual objective-setting and performance cycle, succession planning for key roles, and a long-term equity program that reaches multiple job levels. Workforce strategy goes to the board's Human Resources and Compensation Committee every quarter. Roughly 6,000 contingent workers sit alongside the employee base, and voluntary turnover was near 6 percent at the end of 2025.