Systems Administrator III - TS/SCI w/Poly

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

System Performance

Troubleshooting Hardware

Troubleshooting Software

REQ#: RQ143712
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

Discover a career that is challenging, impactful, and mission-critical. Join our team as a Systems Administrator III and make an impact on customer activities. While you help us advance the mission, we’ll help advance your career.

At GDIT, people are our differentiator. The Systems Administrator III provides in-depth support and problem resolution for information technology products, access administration, and/or applications. The Systems Administrator interacts with users to troubleshoot and resolve hardware, software and performance problems for customers using mainframe, LANs, PCs and printers. The Systems Administrator also analyzes and levies customer requirements to the appropriate technical business unit and may serve on teams installing software upgrades.


This Systems Administrator performs the following core functions:

  • Responsible for providing timely and dependable desktop and access administration support as well as problem resolution within the team

  • Interact with customers on-site in response to IT requests and problem resolution

  • Resolve technical issues relating to multiple operating environments and various hardware issues

  • (repair, reconfiguration, installation); and issues with both the standard suite of software products

  • Microsoft Office suite, Lotus Notes, Skype, and other project-specific applications and configurations Work closely with customers' IT needs and/or problems to ensure they are diagnosed and resolved in a timely fashion, while ensuring appropriate security standards and procedures are employed

  • Coordinate projects with appropriate service providers and customers, identify/resolve project issues, and keep customers/project team members informed of projects! statuses

  • Provide access administration services (i.e., provide customers access to project-specific applications, databases and shared files; process Enterprise Access Request and Reporting System requests; verify accesses; obtain approvals, and serve as a liaison between users and other support offices to resolve/fulfill IT and access administration problems/requirements)

  • Perform the physical setup and configuration of desktop hardware and software as needed

  • Perform other duties as assigned at the discretion of Project Management



  • Active TS/SCI with Polygraph

  • Bachelor’s degree preferred, in Computer Science, Information Systems, Engineering, Business, or a Scientific or technical discipline related to the specific skill.

  • No degree + ten (10) years of relevant experience

  • Associate degree + eight (8) years of relevant experience

  • Bachelor’s degree + six (6) years of experience 

  • Minimum of six (6) years of experience to the specific skill.

  • Thorough knowledge of Windows based PCs and common peripherals

  • Through knowledge of the standard application suites, (e.g. Microsoft Office, Lotus Notes, Skype, and etc.)

  • Ability to identify and resolve technical problems

  • Excellent interpersonal skills and customer service skills

  • Experience with SIP and PBX technology

  • Considerable knowledge of standard desktop hardware and software

  • Ability to successfully plan, coordinate, track, and execute multiple tasks with competing priorities

  • Strong troubleshooting skills

  • Ability to explain rules, procedures, and technical information clearly and accurately, both verbally and in writing

  • Ability to work independently and in a team environment with minimum supervision

  • Demonstrated ability o to follow-through on assigned tasks

  • Ability to execute multiple tasks in an independent manner

  • Knowledge of server administration, maintenance, and user account management

  • Willingness to get hands dirty, move equipment and capable of lifting 20 lbs


  • Active TS/SCI with Poly with most recent BI/Polygraph dates within the last five years


  • 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

8 + years of related experience

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

Travel Required

Less than 10%


U.S. Citizenship Required

About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

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.