Systems Administrator Sr - TS/SCI w/Polygraph

About this role

Type of Requisition: Regular

Clearance Level Must Currently Possess: Top Secret/SCI

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: Computer Systems, End Users, IT Tech Support, Networks Certifications: None Experience: 3 + years of related experience US Citizenship Required: Yes

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

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.

Scheduled Weekly Hours: 40

Travel Required: None

T elecommuting Options: Onsite

Work Location: USA VA Herndon

Additional Work Locations:

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

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