Payment SME Leadership: Act as the definitive enterprise Subject Matter Expert on global B2B infrastructure, covering payment gateways, merchant acquiring, merchant card-not-present (CNP) flows, and clearing rails (ACH, FedNow, SEPA, Real-Time Payments). Payment Partner Management: Cultivate and negotiate strategic partnerships with card networks, payment processors, acquiring banks, and regional Alternative Payment Method (APM) institutions to optimize unit economics and platform breadth.