Senior Systems Administrator (Active Directory)

Quantico, VA 22135

Posted: 12/07/2023 Employment Type: Permanent Job Category: Admin & Support Job Number: 26498 Remote Friendly:

Job Description

Blackstone Talent Group, an award-winning technology consulting and talent agency is seeking a Senior Systems Administrator (Active Directory) to join our Client's team.

Seeking a Senior Systems Administrator (Active Directory) to join our team of experts to assist with operations involving the Department of Justice.


The Systems Administrator shall routinely make group policy modifications to support the needs of the domain. The Systems Administrator shall review existing configurations of the replication topology for inconsistencies and deploys new configurations during site build. She/he shall author PowerShell scripts to automate deployment tasks. The Systems Administrator shall configure and troubleshoot name resolution in an Active Directory-integrated split-brain DNS environment. The Systems Administrator shall perform daily health checks of the enterprise, and up-channel findings with suggested remedies for implementation. The Systems Administrator shall manage the Active Directory-based activation of Windows platforms. Implements security enhancements to the environment as directed by the CSO. Systems Administrator shall proactively review current Active Directory technologies and presents suggestions of those which may enhance the mission. Systems Administrator shall support the unit with other duties as assigned within the scope of work.



  • Clearance: TS/SCI w CI Poly (or willing to sit for CI Poly)
  • Enterprise-level experience in optimizing Directory Services infrastructure and hierarchy.
  • Experience monitoring and maintaining existing Directory Services environments in multiple enclaves with various mission requirements.
  • Utilizes Group Policy to harden resources within the environment.
  • Working knowledge of DISA STIGs and their implementation.
  • Evaluate the relationship between existing policies and plans for the introduction of those needed in the future.
  • Troubleshoot Group Policy processing issues that arise on systems within the environment.
  • Maintain DNS at the service level, verifying functionality and troubleshooting issues.
  • Utilize split-brain DNS for multi-homed enterprise resources.
  • Working knowledge of designing/maintaining AD Federated Services and technologies.
  • Maintain the health of existing AD Certificate Services technologies.
  • Enterprise-level knowledge of Multifactor authentication design and implementation as it pertains to Active Directory and Certificate Services.
  • Enterprise-level mastery of Active Directory 2016, 2019, 2022 and latest version.
  • Author PowerShell scripts that will be used to standup and maintain AD environments.
  • Experience creating and managing custom schema objects within Active Directory.
  • Working experience analyzing current Active Directory delegation and proposing steps to convert to a zero trust-based delegation model.
  • Minimum Education: Four (4) year college degree in system administration, information technology, computer science, computer engineering, plus five (5) years of experience in designing, managing, administering, documenting, troubleshooting, and supporting Active Directory components as detailed above or in lieu of education ten (10) years of experience in designing, managing, administering, documenting, troubleshooting, and supporting Active Directory components within IT systems in both production and development environments. If utilizing in lieu of education, all experience must be at or above the position level described above

Preferred Skills:

  • Experience with designing and developing Federated Services.
  • Programing skills utilizing C# and .net to manipulate AD resources.
  • Experience maintaining code repositories to ensure proper change management.
  • Experience working with on-premises vendor support to run proactive scans analyzing Active Directory technologies and remediating identified issues

Security Clearance Required: TS/SCI CI Poly

Blackstone Talent Group is a wholly owned subsidiary of Blackstone Technology Group, a global IT services and software firm that implements technological solutions across commercial industry verticals and the US Federal Government. Blackstone's global talent augmentation practice was founded in 1998. Blackstone Talent Group has offices in San Francisco, Denver, Houston, Colorado Springs, and Washington, DC. We specialize in providing clients the best talent across a variety of industries and sectors.

EOE of Minorities/Females/Veterans/Disabilities

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We hereby pledge our commitment to actively hire veterans of the U.S. Armed Forces. We value and recognize the leadership, training, character and discipline that our veterans and members of the National Guard and Reserve bring to Blackstone.