Senior Server Engineer, Identity Platform

• Build core Identity platform capabilities, including authentication, authorization, token lifecycle management, session continuity, and account security systems
• Develop scalable, reliable server-side services that support sign-up, login, account recovery, MFA/passkeys, and cross-application identity
• Design and evolve modern identity protocols, integrating standards like OAuth 2.0, OIDC, WebAuthn, biometrics, and secure token exchange
• Improve identity flows across iOS, Android, and web, balancing frictionless user experience with world-class security
• Partner with cross-functional teams—Product, Security, Trust & Safety, Legal, and Mobile/Web Engineering—to build identity foundations that enable safety, privacy, and growth
• Drive technical excellence, contributing thoughtful architectural perspectives and shaping long-term Identity strategies
• Mentor and support fellow engineers, fostering a collaborative, inclusive, and high-trust environment
• Influence system design across teams, using deep identity expertise to lead discussions around security, performance, and scalability

• 7+ years of experience building production backend systems in languages such as Ruby, Java, Scala, Go, or Python
• Proven experience with authentication, authorization, SSO, identity protocols, or account security systems at scale
• Strong knowledge of distributed systems, relational/NoSQL databases, and technologies like MySQL, Redis, Cassandra, Kafka, or Kubernetes
• Familiarity with or interest in modern identity technologies, such as OAuth 2.0/OIDC, WebAuthn, passkeys, MFA, and session management
• A track record of building secure, high-performance services that handle sensitive data responsibly
• Comfort navigating the intersection of security, user experience, and platform architecture
• A collaborative spirit, someone who communicates clearly, lifts others up, and thrives in a team that values mentorship and learning

Offers Equity