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

GCI Incorporated; Virginia (IL); On-site; USD 90,000 - 120,000; Full time

Job summary

GCI Incorporated is seeking a skilled professional to manage compute networks, system administration, virtualization, and cloud infrastructure. The role requires managing network services (LDAP, DHCP, DNS), patch management, backups, and end-user support, with strong focus on security and access controls.

The candidate should have experience with virtualized and storage environments and cloud instances, plus vulnerability scanning. A US citizen with active TS/SCI clearance is required.

Qualifications

• Design and document network architecture.
• Install, configure and manage network services including LDAP, DHCP, DNS, File Servers, and License Servers.
• Perform daily oversight.
• 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.
• 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.
• Familiarity with cloud architecture.
• Familiarity with the creation and configuration of cloud instances.
• Familiarity with patching and upgrade of cloud instances.
• Manage user accounts and accesses.
• Perform vulnerability scans and report results.

Responsibilities

• 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.
• 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.
• Create virtualized computing environments (install/config hardware).
• Install and configure Linux OS.
• Set up virtualized environments.
• Configure storage environments.
• Install vendor upgrades/patching.
• Run system scanning tools.
• Understand cloud architecture and create/configure cloud instances.
• Patch and upgrade cloud instances.
• Manage user accounts and access controls.
• Run vulnerability scans and report results.

Skills

Network design

Router configuration

Windows administration

Linux administration

Virtualization

Cloud computing

Security

Vulnerability assessments

End user support

Patch management

Backup and restore

Access control

Tools

LDAP

DHCP

DNS

File Servers

License Servers

Patching tools

System scanning tools

Job description

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.

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