AD/Entra Engineer - Contractor

About the role

We are looking for an experienced Active Directory and Microsoft Entra ID engineer to lead the hands-on execution of an on-premises Active Directory to Entra ID migration for a large fintech organization. Working under the direction of a solution architect, you will own the build, configuration, migration, testing, and documentation work throughout the project. This role is well-suited for a deeply technical engineer who is comfortable operating with ambiguity in a complex enterprise environment and who has migrated real AD estates before.

Key Responsibilities

• Execute discovery and assessment of the on-premises Active Directory environment and Microsoft 365 tenant, and document findings and dependencies
• Contribute to migration design and tool selection alongside the architect
• Perform Entra ID configuration, identity synchronization, and authentication setup
• Run test migrations, then migrate and validate users, groups, and service accounts
• Configure identity security controls including MFA, Conditional Access, and self-service password reset
• Support endpoint and device management integration through Microsoft Intune
• Produce as-built documentation and deliver administrator training and operational handoff

Required Qualifications

• 5+ years of hands-on directory services engineering, including extensive experience supporting and troubleshooting on-premises Active Directory (authentication, DFS, GPO, LDAP)
• Demonstrated experience executing AD to Entra ID migrations in complex enterprise environments
• Strong working knowledge of Entra Connect and authentication methods (Password Hash Sync, Pass-through Authentication, ADFS)
• Hands-on experience with Microsoft Intune, including device compliance and Entra ID Join and Hybrid Join
• Experience with Conditional Access, MFA, and identity protection in a cloud-first model
• Solid grasp of AD security, common vulnerabilities and safeguards, and Tier-0 security boundaries
• Understanding of modern authentication (OIDC, SAML, Kerberos) and access control models (RBAC, PBAC, ABAC)
• Working familiarity with Azure environments
• Ability to author technical documentation and conduct knowledge transfer sessions

Contractor Requirements

• Must be based in the United States and authorized to work without sponsorship
• Must be available for occasional on-site travel (expenses covered by the client)
• Must be able to pass a background check