Stefan Stamopoulos

Stefan Stamopoulos is currently a Director of Account Management at Mastercard, with experience managing key accounts and payment processing services across Europe. Previously, they served as a Senior Manager Sales and Key Accounts at Worldline Switzerland, where they managed clients for card issuing and payment services in the DACH region. Their prior roles include Senior Manager Sales and Key Accounts at SPS Worldline and Relationship Manager at SIX Pay SA. Stefan holds multiple certifications in Organizational Behavior and Project Management from Akad Business and a postgraduate certificate in Management from London Guildhall University.