Source, structure, and negotiate complex commercial agreements across the money movement ecosystem - card networks, acquirers and processors, sponsor and partner banks, ACH/RTP/FedNow and other payment rails, wallets, and KYC/fraud/risk providers - securing favorable economics and terms while building durable partner relationships. The Principal Partnerships Manager, Payments owns that entire partner ecosystem - sourcing, structuring, and negotiating the external relationships, and orchestrating the internal alignment across Engineering, Product, Business Development, Legal, and Data Science needed to turn each deal into real, measurable value.