Top 8 Senior system administrator ts/sci w/polygraph Jobs in Poolesville, Md

Systems Administrator Sr - TS/SCI w/Polygraph
General Dynamics Information Technology —Herndon, VA
- $114,750 - $155,250 a year
- Bachelor of Science
- Engineering
- 3 years
- Paid holidays
- 401(k) matching
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Senior System Administrator - TS/SCI w/Polygraph
General Dynamics Information Technology —Reston, VA
- $142,792 - $184,000 a year
- Bachelor of Science
- Office
- Mentoring
- Paid holidays
- 401(k) matching
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Falls Technology —McLean, VA
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Cornerstone Defense —Chantilly, VA
- Contract
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ServiceNow Developer - Chantilly, VA
M.C. Dean, Inc —Chantilly, VA
- $125,120 - $187,680 a year
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Cornerstone Defense —Bethesda, MD
- $180,000 a year
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SUSE RGS —Reston, VA
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Systems Administrator Sr - TS/SCI w/Polygraph

General Dynamics Information Technology -
Herndon, VA

Apply Now

Job Details

$114,750 - $155,250 a year
5 days ago

Benefits

Internal mobility program
Paid holidays
401(k) matching

Qualifications

Technical engineering
TS/SCI with Polygraph
Project stakeholder communication

Full Job Description

Clearance Level

Top Secret/SCI

REQ#: RQ225305

Public Trust: None

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

Ensure the safety and security of our nation as a Systems Administrator Senior at GDIT. You’ll apply the latest technology and provide operational support to deliver actionable intelligence for the Intelligence Community. Here, your work will have meaning and impact as you deliver your best every day.

At GDIT, people are our differentiator. As the Systems Administrator Senior, you will help ensure today is safe and tomorrow is smarter. Our work depends on the Systems Administrator Senior joining our team to lead a mission critical team that supports the deployment of systems and capabilities centered on our comprehensive motion imagery software suite. The selected Systems Administrator Senior will work alongside various teams and focus on ensuring the mission is met while upgrading to cutting-edge technologies in full motion video (FMV) of the programs technical vision.

HOW SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT:

Maintains an organization's computer systems' workflows and is responsible for the upkeep, configuration, and reliable operation of computer systems, including fixing network issues along with updating equipment and software
Develops advanced technical solutions for the management of networks, software, hardware, configurations, and architectures
Troubleshoots highly complex system hardware and software issues
Develops training materials for end users on the proper use of hardware and software
Develops implementation plans for software installations and upgrades to operating systems and layered software packages
Monitors and tunes systems to achieve optimum performance levels
Ensures workstation/server data integrity by implementing standard software and hardware solutions
Leads efforts to ensure data/media recoverability by following a schedule of system backups and database archive operations
Conducts advanced hardware and software audits of workstations and servers to ensure compliance with established standards, policies, and configuration guidelines
Develops performance and security plans for computers that meet the needs of network users
Evaluates existing systems and plans long-term strategies
Support analysts performing Full Motion Video TCPED and various phases of exploitation
Report information through weekly site communications group meetings, weekly status reports, and monthly logs to team members and management
Dashboard creation and analytic monitoring using either Splunk or Elastic Stack
Work with the customer’s network engineering group, as needed, to resolve any networking or firewall issue.
Work with the GDIT systems engineering group, as needed, to resolve any system issue.
Support GDIT factory reach back helpdesk in solving daily user issues.
Support sandboxed site operations (warehouse) by verifying OSes have patch updates applied and system backups are working, etc.).
Become an expert in understanding daily operations, networks, and systems.

WHAT YOU’LL NEED TO SUCCEED:

The position requires an active TS/SCI with Polygraph clearance
3+ years of related experience
Bachelor of Science in Engineering, or a related specialized area/field, OR equivalent 7 years job-related experience
Skilled at applying and executing highly advanced technologies, principles, theories and concepts
Proficient understanding and application of engineering principles, concepts, practices, and standards
Demonstrated ability to communicate issues, impacts, and corrective actions
Demonstrated ability to easily and effectively communicate project topics to a diverse audience
Demonstrated ability to clearly report relevant information
Demonstrated ability to anticipate technology, process, and skill needs
Proven problem-solving skills in complex environments
Location: At Customer Site – Herndon area

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

#GDITCareers

#GDITPolyEvent

#GDITEnhanced2026

#MissionPoly2026

#VA_2026Alumni

#CJPost

#Jet

Work Requirements

Years of Experience

3 + years of related experience

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

Certification

Travel Required

None

Citizenship

U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $114,750 - $155,250. 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.

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 gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Apply Now

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