StubHub is seeking a Senior Software Engineer for its Supply Platform team to design and build scalable, high-performance services that support the ticket marketplace. The role involves collaborating with product and engineering teams to deliver innovative solutions, writing clean, maintainable code, and mentoring junior engineers. Candidates should have strong experience in Java or similar languages, distributed systems, and a solid understanding of software engineering best practices. This is a full-time position based in San Francisco, offering an opportunity to contribute to a dynamic e-commerce platform.