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Senior Directory Services Engineer Active Directory Expert
Remote / Online - Candidates ideally in
Grand Prairie, Dallas County, Texas, 75050, USA
Listed on 2026-10-03
Grand Prairie, Dallas County, Texas, 75050, USA
Listing for:
DEXTER TECHNOLOGIES INC
Remote/Work from Home
position Listed on 2026-10-03
Job specializations:
-
IT/Tech
Systems Engineer, Cybersecurity, Windows Server
Job Description & How to Apply Below
Senior Directory Services Engineer (Active Directory Expert)
Location:
Remote
Type:
Contract to Hire (6-12 months)
The Senior/Principal Directory Services Engineer is the organisation's top technical authority for Active Directory and core identity infrastructure. This role leads the design, modernization, security, and lifecycle management of enterprise directory services, ensuring reliability, scalability, and alignment with business and regulatory requirements.
Key Responsibilities- Serve as the principal expert for Active Directory architecture, design, and operations across multi-domain, multi-forest environments.
- Lead modernization initiatives including domain consolidation, schema upgrades, AD hardening, and identity lifecycle automation.
- Architect and maintain Group Policy, DNS, DHCP, replication, trusts, and domain controller strategy.
- Oversee AD security posture: privileged access, tiering models, delegation, auditing, and Zero Trust alignment.
- Drive root-cause analysis and resolution of complex directory issues impacting authentication, authorization, and enterprise applications.
- Develop standards, runbooks, and automation using Power Shell and modern configuration tools.
- Collaborate with cross-functional teams (Security, Cloud, Infrastructure, Applications) to ensure directory stability and performance.
- Evaluate and optimize vendor, contractor, and staffing partnerships supporting directory services.
- 10+ years of hands-on experience with Active Directory in large, complex enterprise environments.
- Expert-level knowledge of AD architecture, domain controllers, replication, GPOs, DNS/DHCP, trusts, and security models.
- Strong experience with Power Shell scripting and automation.
- Deep understanding of identity security, privileged access management, and Zero Trust principles.
- Proven ability to lead large-scale directory upgrades, migrations, and remediation efforts.
- Background in AD forest recovery, DR planning, and cyber-resiliency hardening.
- Microsoft certifications (MS-102, AZ-104, SC-300) or equivalent is a plus
This is a remote position.
Position Requirements
10+ Years
work experience
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