I

Ignite IT

Identity Management / Directory Services - Subject Matter Expert

Full-TimeUpdated on 10/17/2026
No salary listed
Senior, Expert
Suitland-Silver Hill, MD, USA
Hybrid
CybersecuritySecurity Engineering & Architecture
No H1B Sponsorship
US Citizenship Required

About the job

Requirements
  • At least 8 years of progressive experience in enterprise identity and access management, directory services, identity engineering, cybersecurity, systems engineering, or a related discipline.
  • Hands-on experience with Microsoft Active Directory and Microsoft Entra ID.
  • Knowledge of SAML, OAuth 2.0, OpenID Connect, LDAP, multifactor authentication, single sign-on, role-based access control, federation, and identity lifecycle management.
  • Experience designing identity and access management solutions across enterprise, cloud, hybrid-cloud, mobile, and application environments.
  • Experience integrating identity services with enterprise applications, application programming interfaces, cloud platforms, mobile-device management or unified endpoint management, and security services.
  • Knowledge of Zero Trust identity principles, least privilege, privileged access, device identity, and risk-based authentication.
  • Experience troubleshooting complex enterprise authentication and authorization issues.
  • Experience developing architecture diagrams, technical requirements, integration specifications, standards, and operational documentation.
  • Working knowledge of National Institute of Standards and Technology security controls and federal cybersecurity environments.
  • Written and verbal communication skills to collaborate across engineering, security, architecture, application, and program teams.
Responsibilities
  • Serve as the senior technical subject-matter expert for enterprise identity-management and directory-service architecture, engineering, integration, modernization, and troubleshooting.
  • Assess current identity and directory architectures, configurations, integrations, security controls, operational processes, dependencies, scalability, and technical debt.
  • Develop and maintain current-state, target-state, and transition architectures for identity-management capabilities supporting enterprise and field solutions.
  • Design and support enterprise single sign-on, federation, authentication, authorization, multifactor authentication, and identity lifecycle-management capabilities.
  • Support Microsoft Entra ID integration, Conditional Access, multifactor authentication, role-based access control, identity lifecycle management, device identity, risk-based access, compliance checks, automated remediation, and other Zero Trust controls for the endpoint environment.
  • Design identity and access patterns for applications operating on USPS Android devices, including secure transitions between USPS and Government Agency application contexts.
  • Support identity integration between Microsoft Intune and Entra ID, USPS unified endpoint management capabilities, Government Agency applications, application programming interfaces, enterprise directories, public key infrastructure, cloud environments, and security-monitoring platforms.
  • Design and troubleshoot federation using SAML 2.0, OAuth 2.0, OpenID Connect, and related identity standards.
  • Support certificate-based authentication, PIV/CAC integration, application certificates, public key infrastructure, secrets, service identities, and non-human identities as required.
  • Define and evaluate role-based access control, least-privilege, privileged-access, service-account, and administrative-access models.
  • Evaluate identity dependencies during cloud, application, mobile, and infrastructure modernization initiatives.
  • Develop identity architecture diagrams, interface definitions, technical standards, security patterns, operating procedures, and integration documentation.
  • Participate in architecture reviews, technical design reviews, enterprise architecture review board activities, engineering working groups, requirements sessions, and solution assessments.
  • Perform root-cause analysis for complex authentication, authorization, provisioning, federation, directory, synchronization, and application-access issues.
  • Provide technical guidance, mentoring, and knowledge transfer to engineering, application, security, cloud, and operations teams.
Desired Qualifications
  • Experience with Okta Workforce Identity, Adaptive MFA, federation, lifecycle management, or comparable Identity-as-a-Service capabilities.
  • Experience with OpenText or NetIQ Identity Manager, eDirectory, Identity Console, or comparable enterprise identity-orchestration platforms.
  • Experience with Microsoft Intune and device-based Conditional Access.
  • Experience with PIV/CAC and federal public key infrastructure environments.
  • Experience supporting identity services hosted in AWS GovCloud or Azure Government.
  • Experience with PowerShell, Python, Java, REST API, or other identity automation and integration.
  • ServiceNow integration and ITIL-based operations experience.
  • Experience supporting a federal statistical agency, large civilian agency, or comparably complex federal environment.
  • Relevant certifications in Microsoft Identity, Okta, cloud security, identity and access management, cybersecurity, or identity governance.

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