Senior Software Engineer - Customer Identity Seattle, Washington

Senior Software Engineer - Customer Identity

Seattle, Washington, United States

Stub Hub 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 Stub Hub to be the safest, most convenient way to offer a ticket to the millions of fans who browse our platform around the world.

Stub Hub is committed to providing a secure and seamless experiences for our customers. As a Senior Software Engineer on the Customer Identity Engineering team, you will work on improving and maintaining the core systems that authenticate and authorize users across our platforms. You will also collaborate with data scientists and other engineering teams to build and implement advanced detections to identify and prevent Auth‑N / Auth‑Z abuse.

You’ll have the opportunity to work with cutting‑edge security protocols, contribute to improving the reliability and performance of our identity services, and help ensure that our customers’ accounts remain secure.

Location:

Hybrid (3 days in office/2 days remote) – New York, NY or Santa Monica, CA or Aliso Viejo, CA

Stub Hub's Customer Identity Engineering team plays a critical role in ensuring the safety of our users by maintaining and enhancing our authentication and authorization services through the use of security best‑practices and first‑class software engineering.

• 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.

• 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, Postgre
  
  SQL) and No
  
  SQL (e.g., Dynamo
  
  DB, 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.

• Working Knowledge of cloud platforms (AWS, GCP, Azure), hands‑on experience building and owning a cloud‑optimized service.
• Expert experience with containerization and hosting technologies (e.g., Docker, Kubernetes).
• Familiarity with monitoring and alerting tools such as Prometheus / Grafana.
• Previous experience leveraging Machine Learning to augment authentication services to identify fraudulent/ anonymous logins.

• Accelerated Growth Environment: Immerse yourself in 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: Enjoy a rewarding compensation package that includes enticing stock incentives, aligning with our commitment to recognizing and valuing your contributions.
• Flexible Time Off: Embrace a healthy work‑life balance with unlimited Flex Time Off, providing you the flexibility to manage your schedule and recharge as needed.
• Comprehensive Benefits Package: Prioritize your…