Senior Linux Systems Engineer - DoD TS/SCI

Delaware Nation Industries; Dahlgren (IL); On-site; USD 110,000 - 140,000; Full time

Job summary

Delaware Nation Industries is seeking a Senior Linux System Administrator to provide advanced systems administration and engineering support for the Air Force JWICS/JITS mission. You will maintain secure, resilient Linux infrastructure across classified and unclassified environments, supporting mission-critical operations.

The Senior Linux System Administrator will act as a technical authority for Linux platforms, virtualization, automation, system security, and lifecycle management,

Qualifications

• Minimum 6 years of Unix/Linux admin experience.
• Active DoD TS/SCI clearance required.
• Experience with DoD, intelligence, or regulated environments.

Responsibilities

• Administer and maintain enterprise Linux systems across multiple security levels.
• Install, patch, harden, and decommission Linux OSes and services.
• Support Red Hat Enterprise Linux and related distributions.

Skills

Linux systems administration

UNIX/Linux

Scripting (Bash/Python)

Automation (Ansible/Puppet)

VMware vSphere

Security hardening

DoD 8570/8140 IAT III

Cross-domain/DoD environment

Troubleshooting complex systems

Communication skills

Education

Bachelor's degree in IT/CS/Engineering or related field

DoD 8570/8140-compliant IAT III certification

Tools

VMware vSphere

Ansible

Puppet

CloudBolt

Git

Docker

Job description

Delaware Nation Industries is seeking a Senior Linux System Administrator to provide advanced systems administration and engineering support for the Air Force JWICS/JITS mission. You will maintain secure, resilient Linux infrastructure across classified and unclassified environments, supporting mission-critical operations.

The Senior Linux System Administrator will act as a technical authority for Linux platforms, virtualization, automation, system security, and lifecycle management,