Systems Administrator, Senior Advisor (TS/SCI clearance required)

Clearance Level
Top Secret/SCI
Systems Administration
Newington, Virginia
Onsite Workplace
Key Skills For Success

Helpdesk Support

Information Architecture

Information Technology

Microsoft Windows System Administration


REQ#: RQ147876
Requisition Type: Regular
Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

Deliver simple solutions to complex problems as a Systems Administrator, Sr Advisor at GDIT. Here, you’ll tailor cutting-edge solutions to the unique requirements of our clients. With a career in application development, you’ll make the end user’s experience your priority and we’ll make your career growth ours.

At GDIT, people are our differentiator. As a Systems Administrator, Sr Advisor you will help ensure today is safe and tomorrow is smarter. Our work depends on Systems Administrator, Senior Advisor joining our team to manage the systems infrastructure for the client in Newington, VA.


  • 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.

  • May coach and provide guidance to less-experienced professionals.

  • May serve as a team or task lead.


  • Bachelor's Degree in Computer Science or a related technical discipline. (Education, training, certifications or work experience can be substituted in lieu of degree.)

  • 8+ years of direct Systems Administration experience.

  • Advance Microsoft Windows administration certification/experience. 

  • Must have a DoD 8570 IAT II Certification (COMPTIA Security+ CE)

  • Must have a current/active TS/SCI clearance

  • Work location: Newington, VA

Preferred skill set and certifications:

  • ITIL v4 Certification

  • Windows 10 administration and Windows Server experience

  • PowerShell and Linux experience


  • 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 and the ability to make a real impact on the world around you.

  • Rest and recharge with paid vacation and holidays.

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Work Requirements
Years of Experience

8 + years of related experience

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


CompTIA - Security+ CE - CompTIA

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 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.