StubHub is seeking a Senior Software Engineer for the Platform Runtime Services team to design, develop, and maintain scalable backend services that support high traffic and real-time data processing. The role involves collaborating with cross-functional teams to build reliable, performant platform components using technologies such as Java and cloud infrastructure. Candidates should have strong software engineering skills, experience with distributed systems, and a passion for building robust, high-quality software. This is a full-time position located in San Francisco.