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Senior Software Engineer - Customer Identity

StubHub
Aliso Viejo, CA Full-time 12/10/2025 $200k - $250k per year
Undergraduate with 5+ Years of Experience

Job Description

StubHub is seeking a Senior Software Engineer for their Customer Identity Engineering team to enhance authentication and authorization systems. The role involves collaborating with data scientists to implement advanced security measures and improve user account security across platforms.

Requirements

  • 5+ years of experience in software engineering, ideally with a focus on authentication, authorization, and identity services.
  • Proficiency in backend development using languages such as Java, C#, or Python.
  • Experience working with security protocols such as OAuth, SAML, OpenID Connect, and WebAuthN.
  • Familiarity with building and maintaining scalable, distributed systems.
  • Experience working with databases, both relational (e.g., MSSQL, MySQL, PostgreSQL) and NoSQL (e.g., DynamoDB, Cassandra).
  • Understanding foundational concepts of machine learning (Supervised / Unsupervised) and the ability to collaborate with data scientists on implementations.
  • World-class problem-solving skills and the ability to think critically about security, reliability, and performance.

Responsibilities

  • Design, build, and maintain scalable authentication and authorization services.
  • Implement security features to protect against common vulnerabilities (e.g. OWASP top 10).
  • Collaborate with data science teams to integrate machine learning models aimed at identifying and preventing suspicious login activity.
  • Monitor and improve the performance of identity-related services.
  • Investigate and troubleshoot issues related to account security, user identity, and authentication failures.
  • Drive improvements in security protocols, performance optimization, and user experience.
  • Keep up to date with the latest security and identity management trends and apply that knowledge to your work.

Benefits

  • Employees at StubHub may receive benefits such as health coverage, retirement savings options, and other perks typical of large technology and e-commerce companies, supporting both their professional growth and overall well-being.