Senior Entra & Active Directory Engineer — Remote (Tier 3)

Dunhill Solutions; United States; Remote; USD 120,000 - 139,000; Full time

Job summary

Dunhill Government Solutions is seeking a Senior Active Directory / Microsoft Entra Engineer to support a federal program delivering enterprise identity services. This is a full-time, fully remote role and the Tier 3 escalation authority for a hybrid identity platform spanning on-premises Active Directory, AD FS and Microsoft Entra ID.

Responsibilities include designing and maintaining AD infrastructure, integrating on-prem AD with Entra ID, and configuring Kerberos, LDAP, AD FS, DNS, GPOs, and

Qualifications

• U.S. citizenship and ability to obtain Public Trust (Tier 1/NACI).
• Bachelor’s degree in IT, CS, cybersecurity, engineering or related field, or equivalent experience.
• At least 7 years of hands-on IT experience.
• At least 3 years engineering, administering and supporting Active Directory and enterprise directory services.
• Experience designing and supporting AD forests, domains, trusts and related infrastructure.
• Experience supporting hybrid identity across AD, AD FS and Entra ID.
• Advanced PowerShell scripting for automation, health checks, reporting and remediation.
• Preferred: SC-300, AZ-800/AZ-801; familiarity with CA, MFA, SSO, PIM, Identity Protection.

Responsibilities

• Design, implement and maintain Active Directory infrastructure (forests, domains, OU structures, DNS, replication, trusts).
• Architect and support hybrid identity integrating on-premises AD with Microsoft Entra ID.
• Configure and troubleshoot authentication and directory services (Kerberos, LDAP, NTLM, AD FS, DNS, certificates).
• Design and maintain secure Group Policy architecture and hardening.
• Provide Tier 3 incident response and root-cause analysis for replication and authentication issues.
• Implement directory security controls and least-privilege administration.
• Configure Entra ID capabilities including Conditional Access, MFA, SSO and Privileged Identity Management.
• Develop PowerShell automation for health checks, lifecycle operations, diagnostics and remediation.
• Produce architectures, runbooks, recovery procedures and knowledge articles.

Skills

PowerShell scripting

Active Directory

Microsoft Entra ID

Troubleshooting

Tier 3 incident response

Education

Bachelor's degree in IT, CS, cybersecurity, engineering or related discipline

Tools

Active Directory

Microsoft Entra ID

AD FS

Group Policy

PowerShell

Job description

Dunhill Government Solutions is seeking a Senior Active Directory / Microsoft Entra Engineer to support a federal program delivering enterprise identity services. This is a full-time, fully remote role and the Tier 3 escalation authority for a hybrid identity platform spanning on-premises Active Directory, AD FS and Microsoft Entra ID.

Responsibilities include designing and maintaining AD infrastructure, integrating on-prem AD with Entra ID, and configuring Kerberos, LDAP, AD FS, DNS, GPOs, and