Stefano Langenbacher serves as Chief Technology Officer at Vivid Seats Inc. (Class A), where he has driven the company's technological evolution since joining in 2021. With over two decades of experience in building and scaling high-traffic digital platforms, Langenbacher previously held the role of Senior Vice President of Engineering at Grubhub, where he led the engineering organization through rapid growth, optimizing delivery systems and integrating advanced machine learning for demand forecasting. Earlier in his career, he was Vice President of Engineering at Groupon, spearheading global platform migrations to cloud infrastructure, and Engineering Manager at Orbitz Worldwide, enhancing travel booking experiences for millions of users. A graduate of the University of Illinois with a degree in Computer Science, Langenbacher is renowned for his expertise in microservices architecture, DevOps, and data-driven innovation. In his current role at Vivid Seats, Langenbacher oversees the full technology stack, from frontend user interfaces to backend scalability and AI-powered personalization features that enhance the fan experience in live event ticketing. Under his leadership, the company has modernized its core platform to handle surging demand during peak events like concerts and sports seasons, achieving significant improvements in site speed, reliability, and conversion rates. His strategic initiatives, including the adoption of Kubernetes for orchestration and real-time analytics for dynamic pricing, have positioned Vivid Seats as a leader in the competitive ticketing industry, supporting seamless mobile experiences and robust marketplace integrity. Langenbacher's achievements extend beyond technical execution; he has fostered a culture of innovation and agility, mentoring engineering teams to deliver customer-centric solutions amid industry disruptions. His contributions have been instrumental in Vivid Seats' public listing and ongoing expansion, earning him recognition as a forward-thinking executive committed to leveraging technology for accessible entertainment.