Windows Systems Administrator - TS/SCI w/Polygraph Required

Clearance Level
Top Secret SCI + Polygraph
Systems Administration
Herndon, Virginia
Onsite Workplace
Key Skills For Success

Microsoft Windows

Microsoft Windows Server

Systems Engineering

REQ#: RQ171045
Requisition Type: Regular
Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

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.


  • 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


  • Education: Bachelor's degree in Computer Science, Information Systems, or similar relevant degree
  • 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
  • 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 PowerShell 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 NetApp
  • Demonstrated capacity to understand and communicate technical ideas, concepts, and thoughts across multiple technical and non-technical stakeholders
  • Experience scripting system administration tasks in PowerShell
  • Familiarity with MSFT ADSI edit
  • Linux LDAP integration with AD
  • Splunk
  • Location: Herndon, VA, on customer site
  • US Citizenship Required


  • 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



Work Requirements
Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree


MCSE - Microsoft

Travel Required

Less than 10%


U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $161,500 - $218,500. 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.
View information about benefits and our total rewards program.

About Our Work

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.