Cybersecurity Engineer, Identity Platform Engineering

About Rivian

Rivian is on a mission to keep the world adventurous forever. This goes for the emissions‑free Electric Adventure Vehicles we build, and the curious, courageous souls we seek to attract.

As a company, we constantly challenge what’s possible, never simply accepting what has always been done. We reframe old problems, seek new solutions and operate comfortably in areas that are unknown. Our backgrounds are diverse, but our team shares a love of the outdoors and a desire to protect it for future generations.

Rivian is seeking a Staff Cybersecurity Engineer – Identity Platform Engineering (IAM/IGA) to drive our identity governance modernization and migration, building the infrastructure and engineering foundations needed to deliver scalable, auditable identity services. This role is deeply hands‑on and cross‑functional: you’ll partner with HR, IT, Enterprise Security, and the SOC to deliver reliable IAM services centered on Microsoft Entra  (or equivalent enterprise identity platforms).

You’ll build and operate IAM automation in AWS using disciplined engineering practices. This position will be located in Atlanta, GA and report to our Director of IAM.

• IGA Migration & Modernization: Drive modernization and migration of IGA capabilities (requests/approvals, fulfillment, access reviews/certifications, evidence generation) across our IGA environment, including SailPoint and Microsoft Entra  workflows, delivering outcomes that are usable, auditable, and scalable.
• IGA Platform Infrastructure: Build the infrastructure and engineering foundations that make IGA reliable at scale (standard patterns, automation, configuration/versioning approaches, repeatable onboarding, and operational readiness).
• Automation & Platform Engineering: Design and build IAM automation and platform components (APIs, scripts, CLIs, lightweight services/jobs); deploy and operate them in AWS using Git‑based delivery, CI/CD pipelines, and IaC, with production‑ready basics (monitoring/logging, rollback, runbooks).
• Integration Engineering: Make application onboarding predictable through standard SSO and provisioning approaches (e.g., SAML/OIDC, SCIM), reusable templates/playbooks, and reliability gates; reduce recurring break‑fix through operational readiness standards.
• Delivery Practices: Drive an engineering‑quality delivery model: design/peer review, automated checks/testing where practical, staged rollouts, rollback plans, and operational readiness for IAM changes.
• Identity Lifecycle Reliability: Improve joiner/mover/leaver processes end‑to‑end, strengthening lifecycle automation, verified deprovisioning, and access revocation with clear health signals and robust failure handling.
• Modern Authentication/Authorization Patterns: Establish standard authentication and authorization patterns (SSO, MFA, OAuth/OIDC/SAML) with pragmatic exception handling and migration runbooks, including modern policy patterns in Microsoft Entra  (e.g., Conditional Access).
• Operational Excellence: Treat IAM as a service: improve monitoring and runbooks, participate in incident response and on‑call rotation, and drive post‑incident improvements that prevent recurrence.
• Cross‑Functional Alignment: Orchestrate delivery across HR IT, IT, Enterprise Security, and SOC partners; unblock decisions, communicate tradeoffs clearly, and land standards that are adopted (not just documented).

• Experience: 8+ years of relevant experience in IAM / cybersecurity engineering / identity platform engineering (or equivalent practical experience delivering comparable scope).
• IAM Domain Depth: Significant experience across identity lifecycle, governance concepts, authentication/authorization patterns, and privileged access fundamentals, including hands‑on experience with a leading enterprise identity platform (e.g., Microsoft Entra , Okta) or equivalent.
• Engineering / Dev Sec Ops  Foundation: Strong hands‑on ability using Go, Python, or Power Shell and Git‑based workflows, with experience building CI/CD pipelines, using IaC (Terraform or Cloud Formation), and deploying/operating automation in cloud environments (AWS or equivalent).
• Staff‑…