
Windows Systems Administrator - TS/SCI with Polygraph
General Dynamics Information Technology
Herndon, VAFull-time$187–253K/yrSeen todaySeen in employer's feed today
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At a glance
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Requirements
Credentials this posting asks for.
Job overview
The Windows Systems Administrator maintains and develops Windows infrastructure, engineers systems administration solutions, and supports performance, capacity, upgrades, and automation. The role is based at a customer site in Herndon, Virginia, and requires 10+ years of Windows Systems Administration experience, an active TS/SCI clearance with polygraph, and U.S. citizenship. A bachelor's degree or equivalent experience is accepted; MCSE is advantageous.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Req ID: RQ231463
Type of Requisition: Regular
Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph
Public Trust/Other Required: None
Job Family: IT Infrastructure and Operations
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
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Proactively maintain and develop all Windows infrastructure technology to maintain a 24x7x365 uptime service
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Engineer systems administration-related solutions for various project and operational needs
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Maintain best practices for managing systems and services across all environments
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Perform fault-finding, analysis, and logging of information for reporting of performance exceptions
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Proactively monitor system performance and capacity planning
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Manage, coordinate, and implement software upgrades, patches, and hot fixes on servers and workstations
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Create and modify scripts or applications to perform tasks
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Provide input on ways to improve the stability, security, efficiency, and scalability of the environment
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Collaborate with other teams and team members to develop automation strategies and deployment processes
WHAT YOU’LL NEED TO SUCCEED:
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Education: Bachelor's degree in Computer Science, Information Systems, or similar relevant degree, or equivalent experience
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Required Experience: 10+ years in Windows Systems Administration
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Required Technical Skills:
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Strong background in Microsoft Systems Engineering and providing support to those systems
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Microsoft operating systems including Windows Server 2016 or later
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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
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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
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Strong knowledge of virtualization Windows workstations/servers hosted within VMware
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Current experience in the Sponsor's classified and unclassified distributed work environment architectures and systems
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Management of stand-alone Microsoft Certificate Authority
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Immediate response may be required to restore or maintain system functionality (Tier 3 troubleshooting)
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Familiarity with Jira and Confluence
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Security Clearance Level: Active TS/SCI with Polygraph
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Location: Herndon, VA, on customer site
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Advantageous Certifications: MCSE
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Other Preferred Skills :
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Knowledge of and experience with security best practices and technologies, including patch management, hardening of Windows systems
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Familiarity with PowerShell scripts to run/edit
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Knowledge of customer enterprise services and customer specific compliance requirements
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Management of MFA implementations
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In-depth knowledge of VMWare and ESXi
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Previous experience with storage devices including NetApp
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Demonstrated capacity to understand and communicate technical ideas, concepts, and thoughts across multiple technical and non-technical stakeholders
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Experience scripting system administration tasks in PowerShell
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US Citizenship Required
GDIT IS YOUR PLACE:
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401K with company match
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Comprehensive health and wellness packages
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Internal mobility team dedicated to helping you own your career
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Professional growth opportunities including paid education and certifications
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Cutting-edge technology you can learn from
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Rest and recharge with paid vacation and holidays
#OpportunityOwned
#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.
Total Rewards at GDIT:
Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.
Our Identity Verification Process:
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.
About Our Work:
We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.
Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc.
Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans
How this job compares
Set against the 2,233 open Systems Administrator jobs on Olive Jobs, counted November 3, 2026.
- Pay
- This posting$187–253K/yr
- Virginia median$96–160K/yr190 salary ranges
- US median$92–147K/yr1,383 salary ranges
This range's midpoint, $220K, is 71% above the Virginia median midpoint ($129K) — in the top quarter of Systems Administrator salary ranges in Virginia.
- Openings
- Olive Jobs lists 257 open Systems Administrator jobs in Virginia and 2,233 across the US. 5% of them nationwide are listed as remote or flexible.
- Hiring the most in Virginia
- CACI International23 open
- General Dynamics Information Technology (this employer)21 open
- Leidos21 open
- Experience
- This posting asks for at least 10 years of experience — more than three in four Systems Administrator postings that state a minimum ask for (median 5 years, across 1,876 postings).
- Education
- 376 of the 2,233 open Systems Administrator jobs (17%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 3, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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