Amazon · Seattle, WA
Skills: AWS
Description Do you want to protect how Amazon's workforce signs in and accesses critical systems every day? Amazon Foundational Security Services is looking for a Software Development Engineer II to build and operate the identity and authentication services that keep tens of thousands of employees secure and productive. You'll design and deliver distributed systems that handle real-time identity data sync, certificate issuance for corporate devices, and Kerberos authentication—solving problems where correctness and availability matter around the clock.
This role offers rare breadth across the identity space in one team. You'll work on workforce sign-in and AWS access, near real-time directory sync, a corporate certificate authority, and Kerberos authentication. You'll balance building new capabilities on AWS with modernizing long-running core infrastructure, all through a security-first lens. If you're ready to turn well-understood business problems into simple, secure, and maintainable code while learning from every incident and mentoring others, we'd love to hear from you.
Key job responsibilities
Design and build distributed services that handle authentication, authorization, and identity data synchronization, making sound tradeoffs between scalability, performance, and security Deliver software features across the full lifecycle—from scoping and design through code, testing, deployment, and maintenance—while actively reviewing code and providing meaningful feedback to teammates Participate in operational support including oncall rotation, monitoring and alarming, root cause analysis, and balancing new feature work against operational improvements to ensure services remain reliable Work with identity and security technologies such as SAML, OpenID Connect, SCIM, LDAP, Active Directory, Kerberos, and X.509 certificates to solve real authentication and authorization challenges Document how your services are constructed, tested, operated, and secured, and train new t …t…
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