Software Engineer II - Web Foundations

StubHub is on a mission to redefine the live event experience on a global scale. Whether someone is looking to attend their first event or their hundredth, we're here to delight them all the way from the moment they start looking for a ticket until they step through the gate. The same goes for our sellers. From fans selling a single ticket to the promoters of a worldwide stadium tour, we want StubHub to be the safest, most convenient way to offer a ticket to the millions of fans who browse our platform around the world. StubHub is seeking a Software Engineer II to join our Web Foundations team within Consumer App Foundations (CAF). This team builds and maintains the shared web platform that powers StubHub's consumer experiences across web and mobile. As a fullstack engineer on Web Foundations, you will work across frontend and backend systems to build reusable services, shared libraries, and platform capabilities that help product teams ship faster and with higher quality. You will contribute directly to core systems that support millions of users, ensuring they are performant, reliable, and easy for other engineers to build on. This is a strong hands-on role for engineers who enjoy building scalable systems, improving developer experience, and solving real-world problems at marketplace scale. Location: Hybrid (3 days in office/2 days remote) - New York, NY or Century City, CA About the team: Consumer App Foundations (CAF) operates horizontally to provide shared infrastructure, tooling, and standards that power all consumer-facing teams. The Web Foundations team focuses on: Shared frontend and backend platform services Core web architecture and reusable component libraries APIs and middleware supporting consumer workflows Performance, reliability, and accessibility at scale Enabling experimentation and feature velocity We work closely with product, design, data, and vertical engineering teams to ensure the foundation supports rapid innovation across StubHub. What You'll Do: Design, build, test, deploy, and maintain fullstack features and platform services used by multiple teams Develop reusable frontend components and shared backend APIs Improve performance and reliability across high-traffic consumer systems Contribute to experimentation infrastructure and feature enablement tooling Debug production issues and continuously improve system health Collaborate cross-functionally to understand platform needs and deliver scalable solutions Write clean, maintainable code and participate in code reviews What You've Done: 3-5 years of professional experience in software development Experience building and shipping fullstack applications using modern frontend frameworks (React, JavaScript/TypeScript) and backend technologies (C#, Java, Python, or similar) Strong understanding of APIs, service communication, and system dependencies Experience working on consumer-facing products at scale Proven ability to own projects from implementation through production support Comfortable operating in fast-paced, experimentation-driven environments Nice to have: Experience contributing to shared component libraries or internal tooling Familiarity with feature flagging or A/B testing frameworks Experience optimizing performance in web applications Exposure to AI-enabled features or experimentation platforms What We Offer: Accelerated Growth Environment : An environment designed for swift skill and knowledge enhancement, where you have the autonomy to lead experiments and tests on a massive scale. Top Tier Compensation Package : Competitive base, equity, and upside that tracks with your impact. Flexible Time Of f: Enjoy unlimited Flex Time Off, giving you the flexibility to manage your schedule and take time to recharge as needed. Comprehensive Benefits Package : Prioritize your well-being with a comprehensive benefits package, featuring 401k, and premium Health, Vision, and Dental Insurance options. The anticipated gross base pay range is below for this role. Actual compensation will vary depending on factors such as a candidate's qualifications, skills, experience, and competencies. Base annual salary is one component of StubHub's total compensation and competitive benefits package, which includes equity, 401(k), paid time off, paid parental leave, and comprehensive health benefits. Salary Range $165,000-$200,000 USD About Us StubHub is the world's leading marketplace to buy and sell tickets to any live event, anywhere. Through StubHub in North America and viagogo, our international platform, we service customers in 195 countries in 33 languages and 49 available currencies. With more than 300 million tickets available annually on our platform to events around the world -- from sports to music, comedy to dance, festivals to theater -- StubHub offers the safest, most convenient way to buy or sell tickets to the most memorable live experiences. Come join our team for a front-row seat to the action. For California Residents: California Job Applicant Privacy Notice found here We are an equal opportunity employer and value diversity on our team. We do not discriminate on the basis of race, color, religion, sex, national origin, gender, sexual orientation, age, disability, veteran status, or any other legally protected status.