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Windows Systems Administrator - TS​/SCI Polygraph

Job in Herndon, Fairfax County, Virginia, 22070, USA
Listing for: GD Information Technology, Inc.
Full Time position
Listed on 2026-11-05
Job specializations:
  • IT/Tech
    Systems Administrator, Windows Server, Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 187000 - 253000 USD Yearly USD 187000.00 253000.00 YEAR
Job Description & How to Apply Below

Type of

Requisition :
Regular Clearance Level Must Currently Possess:
Top Secret SCI + Polygraph Clearance Level Must Be Able to Obtain:
Top Secret SCI + Polygraph Public Trust/Other

Required:

None Job Family: IT Infrastructure and Operations

Job Qualifications:

Skills:

Microsoft Endpoint Manager, Microsoft Windows, Microsoft Windows Server, Systems Engineering

Certifications:

MCSE
- Microsoft
- Microsoft

Experience:

10 + years of related experience US Citizenship

Required:

Yes

Job Description

Transform technology into opportunity as a Windows Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

HOW A WINDOWS SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT
  • Proactively maintain and develop all Windows infrastructure technology to maintain a 24x7x365 uptime service
  • Engineer systems administration-related solutions for various project and operational needs
  • Maintain best practices for managing systems and services across all environments
  • Perform fault-finding, analysis, and logging of information for reporting of performance exceptions
  • Proactively monitor system performance and capacity planning
  • Manage, coordinate, and implement software upgrades, patches, and hot fixes on servers and workstations
  • Create and modify scripts or applications to perform tasks
  • Provide input on ways to improve the stability, security, efficiency, and scalability of the environment
  • Collaborate with other teams and team members to develop automation strategies and deployment processes
WHAT YOU’LL NEED TO SUCCEED:

Education:

Bachelor's degree in Computer Science, Information Systems, or similar relevant degree, or equivalent experience

Required Experience:

10+ years in Windows Systems Administration

Required Technical

Skills:
  • Strong background in Microsoft Systems Engineering and providing support to those systems Microsoft operating systems including Windows Server 2016 or later
  • Active Directory (AD), specifically:
    Health of AD to include, but not limited to, AD Sites and Services/Replication;
    Group Policy Implementation to include registry changes;
    Permissions (security and/or file) related to user accounts, OUs and shares; DNS, DHCP; LDAP integration with non-Microsoft based applications
  • Experience maintaining and managing Microsoft Endpoint Configuration Manager (MECM), specifically:
    Software package creation and distribution;
    Imaging Windows workstations and servers (virtual and physical);
    Patch management;
    Integration of Windows Defender with MECM
  • Strong knowledge of virtualization Windows workstations/servers hosted within VMware
  • Current experience in the Sponsor's classified and unclassified distributed work environment architectures and systems
  • Management of stand-alone Microsoft Certificate Authority
  • Immediate response may be required to restore or maintain system functionality (Tier 3 troubleshooting)
  • Familiarity with Jira and Confluence

Security Clearance Level: Active TS/SCI with Polygraph

Location:

Herndon, VA, on customer site

Advantageous

Certifications:

MCSE

Other Preferred

Skills:
  • Knowledge of and experience with security best practices and technologies, including patch management, hardening of Windows systems
  • Familiarity with Power Shell scripts to run/edit
  • Knowledge of customer enterprise services and customer specific compliance requirements
  • Management of MFA implementations
  • In-depth knowledge of VMWare and ESXi
  • Previous experience with storage devices including Net App
  • Demonstrated capacity to understand and communicate technical ideas, concepts, and thoughts across multiple technical and non-technical stakeholders
  • Experience scripting system administration tasks in Power Shell

US Citizenship Required

GDIT IS YOUR PLACE:
  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from
  • Rest and recharge with paid vacation and holidays

#Opportunity Owned #GDITCareers #WeAreGDIT #JET

The likely salary range for this position is $187,000 - $253,000.

This is not, however, a guarantee of compensation or salary.

Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly

Hours:

40

Travel Required:

Less than 10%

Telecommuting Options:
Onsite

Work…

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