Staff-level backend engineer focused on designing and operating core CIAM (customer identity and access management) services at Affirm. You will build and maintain highly available distributed systems supporting registration, login, authorization, and account lifecycle flows using Python or Kotlin on AWS infrastructure.… Strong expertise required in OAuth 2.0, OIDC, SAML, and SCIM standards, plus hands-on experience with CIAM platforms like Okta, Auth0, or ForgeRock. You'll own secure authentication flows end-to-end, automate deployments via Infrastructure as Code, and collaborate across engineering and security teams.
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