Cyber Systems Administrator Senior

Clearance Level
Top Secret SCI + Polygraph
Systems Administration
Washington, District of Columbia

REQ#: G2019-66972

Responsible for strengthening the defensive posture and cyber defense operational readiness of an IT Enterprise our Enterprise Cyber Network Defense (ECND) program defends and protects Government assets from external Cyber Security attacks and Insider Threats that can potentially cause or create data, systems, networks, and personnel vulnerabilities.

Functional duties:

  1. Manage the functionality and efficiency of Cyber systems.
  2. Provide O&M support to Linux-based appliances and servers.
  3. Support system installation, configuration maintenance, account maintenance, signature maintenance, patch management, and troubleshooting of operational CND systems.
  4. Set up administrator and service accounts.
  5. Maintain system documentation.
  6. Make recommendations to purchase hardware and software, coordinates installation and provide backup recovery.
  7. Provide advice and training to end-users.
  8. Provide guidance and work leadership to less-experienced staff members.
  9. Maintain current knowledge of relevant technologies as assigned.


  • 5+ years of experience.
  • TS/SCI clearance.
  • CI Poly obtainment and maintenance.
  • Approved DoD 8570 Baseline certification.


" 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.

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.