IAM Lead – Authentication Services

Position Overview We are seeking an experienced Lead – IAM Authentication Services to provide technical leadership and architectural direction for enterprise identity and authentication services. This role will be responsible for the design, implementation, administration, security, and ongoing evolution of our Identity and Access Management (IAM) authentication platforms.

The ideal candidate brings extensive hands-on expertise with Microsoft Active Directory, Microsoft Entra  (Azure AD), enterprise Single Sign-On (SSO), federation, and modern authentication protocols. This individual will serve as a technical subject matter expert and will work closely with infrastructure, cybersecurity, application, cloud, and engineering teams to deliver secure, scalable, and highly available identity services.

Key Responsibilities Lead the architecture, engineering, administration, and operational support of enterprise IAM authentication services.

Provide technical leadership for Active Directory architecture, including domain services, forests, domains, trusts, Group Policy, replication, DNS integration, authentication, and directory security.

Design, implement, and maintain Microsoft Entra  (Azure AD) environments, including tenant architecture, identity synchronization, authentication, Conditional Access, application integrations, and hybrid identity.

Lead the design and implementation of enterprise Single Sign-On (SSO) solutions using technologies and protocols such as:

SAML 2.0OAuth 2.0

OpenID Connect (OIDC)
WS-Federation

KerberosLDAPArchitect and support integrations between on-premises Active Directory, Entra , SaaS applications, cloud platforms, and enterprise applications.

Establish and maintain authentication patterns and standards for workforce, application, and service identities.

Design and support highly available and resilient authentication infrastructure, including disaster recovery and business continuity capabilities.

Provide technical leadership for identity modernization initiatives, including hybrid identity, cloud migration, passwordless authentication, and Zero Trust architectures.

Troubleshoot complex authentication, federation, directory, and SSO issues across enterprise environments.

Develop and maintain IAM architecture documentation, standards, technical procedures, and operational runbooks.

Establish and enforce security best practices for identity infrastructure, privileged access, authentication, and directory services.

Partner with cybersecurity teams to identify and remediate identity-related vulnerabilities and risks.

Collaborate with application and engineering teams to onboard applications to enterprise authentication and SSO platforms.

Provide technical guidance and mentorship to IAM engineers and administrators.

Participate in architecture reviews, technology evaluations, and strategic IAM roadmaps.

Support incident response and root-cause analysis for critical identity and authentication incidents.

Evaluate emerging identity technologies and recommend solutions that improve security, resiliency, user experience, and operational efficiency.

Required Qualifications 8+ years of experience in Identity and Access Management, authentication, directory services, infrastructure engineering, or a related discipline.

Extensive hands-on experience designing and administering Microsoft Active Directory in large enterprise environments.

Strong understanding of Active Directory architecture, including:

Forests and domains

Domain controllersAD replicationDNSGroup Policy Trust relationships

Kerberos authenticationLDAPActive Directory security and hardening

Extensive experience with Microsoft Entra  (Azure AD) and hybrid identity architectures.

Strong experience implementing and troubleshooting SSO…