Network Engineer Sr Principal (TS​/SCI with Poly Required

Network Engineer Sr Principal (TS/SCI with Poly Required)

Job Category: IT Infrastructure and Operations

Requisition Number: NETWO
002269

• Posted :
  August 19, 2026
• Full-Time
• On-site
• Salary Range : $142,792 USD to $ USD

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.

Program is looking for a Network Engineer to work on an exciting team to maintain and review our existing system and help architect a new system enable customer mission. As a Network Engineer, a typical day will include:

Responsible for managing compute 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 systems administration:

• Perform installation, configuration, and management of Windows and Linux based computer systems.
• Install vendor software patches.
• Updated software repositories.
• Perform data backups and restorations.
• Provide end user support.
• Perform daily oversight.

Experience in configuration and administration of a virtualize and storage environment:

• Demonstrated ability to create a virtualized computing environment including the installation and configuration of hardware.
• Installation and configuration of Linux OS.
• Installation and configuration of a Virtualized Environment.
• Installation and configuration of a Storage Environment.
• Install vendor upgrade and patching.
• Install and run system scanning tools.

Experience with creating and managing instances in a cloud environment.

• Familiarity with cloud architecture.
• Familiarity with the creation and configuration of cloud instances.
• Familiarity with patching and upgrade of cloud instances.

Experience with network and system security:

• Manage user accounts and accesses.
• Perform vulnerability scans and report results.

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

:

Bachelor of Science or better in Computer Science or related field.

Demonstrated work related experience.

Equal Opportunity Employer
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