Designs and presents scalable payment and checkout solutions for enterprise merchants. Leads technical discovery, solution architecture, custom integrations, demos, and pre-sales support while partnering with Sales, Engineering, Product, and partner teams. Advises customers, identifies technical risks, influences product development, creates reusable enablement materials, and supports successful implementations. Requires strong expertise in payments, fintech, APIs, SaaS, enterprise architecture, and e-commerce or point-of-sale checkout systems.