Systems Administrator Sr - TS/SCI w/Polygraph

General Dynamics - IT; Herndon (VA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

401K with company match

Comprehensive health and wellness

Internal mobility team

Professional growth opportunities

Cutting-edge technology

Paid vacation and holidays

Job summary

General Dynamics - IT in the United States is seeking a Senior Systems Administrator in Herndon, VA to support the deployment of systems and FMV software, delivering actionable intelligence and enabling mission success.

You will lead a mission-critical team, develop advanced technical solutions, and maintain backups, security plans, and system performance while coordinating with multiple groups and stakeholders.

Qualifications

• Active TS/SCI clearance with Polygraph is required.
• Minimum 3 years of related systems administration experience.
• Bachelor of Science in Engineering or an equivalent combination of education and experience.
• Ability to apply advanced technologies and engineering principles.
• Strong communication of issues, impacts, and corrective actions.
• Ability to convey project topics clearly to diverse audiences.
• Demonstrated problem-solving skills in complex environments.

Responsibilities

• Maintains computer systems' workflows and ensures reliable operation and updates.
• Develops advanced technical solutions for network, software, hardware, and configurations.
• Troubleshoots complex hardware and software issues on systems.
• Creates training materials for end users on hardware/software usage.
• Implements software installations and OS upgrades with proper plans.
• Monitors and tunes systems for optimum performance.
• Ensures data integrity and enables backups and archive operations.
• Audits hardware/software to ensure compliance with standards and policies.
• Plans and implements security measures for networked computers.
• Evaluates existing systems and plans long-term strategies.
• Supports Full Motion Video TCPED and exploitation phases as needed.
• Reports progress via site meetings, status reports, and logs.
• Creates dashboards and performs analytics using Splunk or Elastic Stack.

Skills

TS/SCI clearance with Polygraph

3+ years experience

Education

Bachelor of Science in Engineering

Equivalent 7 years job-related experience

Tools

Splunk

Elastic Stack

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