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Network Engineer Expert; TS​/SCI Poly Security Clearance

Job in Chantilly, Fairfax County, Virginia, 20151, USA
Listing for: GCI, Inc
Full Time position
Listed on 2026-02-18
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Job Description & How to Apply Below
Position: Network Engineer Expert (TS/SCI with Poly Required) with Security Clearance
GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry.

At GCI, we solve the hard problems. As a Network Engineer, a typical day will include the following duties:
Managing computer network equipment and services. Also responsible for system administration of computers on network. Responsible for managing computer networks and network services:
* Design and document network architecture.
* Configure routers and managed switches.
* Install, configure and manage network services including LDAP, DHCP, DNS, File Servers, and License Servers.
* Perform daily oversight. Responsible for computer system administration:
* Perform installation, configuration, and management of Windows and Linux based computer systems.
* Install vendor software patches.
* Update software repositories.
* Perform data backups and restorations.
* Provide end user support.
* Perform daily oversight.

Experience with network and system security:
* Manage user accounts and accesses.
* Perform vulnerability scans and report results.
* Perform system software patches and updates.
* Maintain system security plans.
* Interface with security personnel.
* A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans
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