Senior Cybersecurity Engineer, Identity and Access Management (IAM)

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.

Summary Rivian is seeking a Senior Cybersecurity Engineer, Identity and Access Management (IAM) to help design, build, and improve the identity systems and controls that protect Rivian's people, applications, infrastructure, and data. This is a hands-on IAM engineering role for someone who brings identity depth, strong delivery habits, and the ability to own moderately complex IAM work from design through validation and operational support. You will help deliver reliable, auditable IAM services across Microsoft Entra ID, Conditional Access, privileged access management, credential vaulting, identity governance, and lifecycle workflows. The work includes reducing fragile manual processes, improving operational readiness, and leaving behind patterns that make the next similar change easier and safer. Primary charter: deliver senior IAM ownership across priority identity areas, improving reliability, control quality, automation, and operational supportability while supporting Rivian's move toward a stronger Zero Trust access posture. Location: Belgrade, Serbia (onsite/hybrid at a Rivian location; remote is not available). Participation in an incident on-call rotation is required. Responsibilities ● IAM Ownership: Design and deliver improvements across priority IAM areas, with current emphasis on Microsoft Entra ID, Conditional Access, privileged access management, non-human identity, PKI/secrets, and identity governance. ● Privileged Access and Non-Human Identity: Strengthen privileged access management, vaulted credentials, service accounts, workload identities, and secrets through clearer ownership and safer controls. ● Identity Governance and Lifecycle: Improve IAM workflows such as access requests, approvals, reviews, provisioning, deprovisioning, ownership tracking, and evidence generation. ● Automation: Improve repeatable IAM workflows through maintainable scripts, jobs, APIs, CLIs, Microsoft Graph integrations, safer change patterns, and clearer handoffs. ● Service Evolution: Evolve IAM services with monitoring, runbooks, incident response, and fixes that reduce recurring failure modes. Participation in an incident on-call rotation is required. ● Collaboration: Work with HR, IT, Enterprise Security, SOC, application owners, and infrastructure partners to make identity controls practical, supportable, and aligned to business needs. Qualifications ● Experience: 5+ years in identity and access management, cybersecurity engineering, identity platform engineering, or equivalent practical experience. ● Identity Platforms: Hands-on experience with Microsoft Entra ID, Microsoft Graph, and Conditional Access in an enterprise environment, with working knowledge of Zero Trust, time-bound access, just-in-time access, step-up authentication, and phishing-resistant methods such as FIDO2/WebAuthn, passkeys, or certificate-based authentication. ● IAM Domain Depth: Hands-on ownership across multiple IAM domains, with strength in areas such as privileged access management, non-human identity, PKI, secret management (vaulting, rotation), SSO/federation (SAML, OAuth, OpenID), entitlement/access reviews, or lifecycle (J/M/L) and provisioning (SCIM). Familiarity with Active Directory, Group Policy, and authentication protocols (LDAP, Kerberos, NTLM) is valued. ● Automation: Proven ability to build or improve scripts, jobs, workflow logic, or lightweight automation using tools such as Python, PowerShell,