Senior Linux Systems Administrator: Automation Focus

Trinzic; California; On-site; USD 120,000 - 180,000; Full time

Job summary

KBR is seeking a Senior Linux Systems Administrator with a focus on automation to join the team. The role centers on designing, deploying, and maintaining Linux-centric server architectures while ensuring DISA STIG and RMF compliance across distributed test networks.

You will streamline configuration management with Ansible, manage virtualization and container platforms, and contribute to documentation and operational procedures for secure DoD environments.

Qualifications

• Active Top Secret clearance required.
• 10+ years as Systems Administrator or Systems Engineering role.
• Bachelor’s degree or equivalent professional experience.
• Deep knowledge of Enterprise Linux (RHEL) architectures, storage (LVM), systemd, firewalld, SELinux, Bash scripting.
• Hands-on with Ansible playbooks, inventories, and automation workflows.
• Experience with virtualization (VMware vSphere) and container platforms (Docker, Kubernetes).
• Ability to travel up to 20%.
• Willingness to work in a DoD RMF/DI SA and STIG compliant environment.

Responsibilities

• Install, configure, optimize, and maintain enterprise Linux distributions (RHEL, Rocky, CentOS).
• Develop and maintain Ansible playbooks and roles for provisioning, hardening, and patch cycles.
• Support containers and orchestration with Docker, Podman, Kubernetes.
• Automate DISA STIG implementations and RMF compliance checks.
• Manage software repositories and image baselines with Satellite/Foreman.
• Administer virtualization environments (VMware vSphere) and related storage.
• Maintain security posture with ACAS/Nessus and Trellix agents.
• Document SOPs, runbooks, and network diagrams.

Skills

Linux

Bash scripting

Automation mindset

Security clearance

Education

Bachelor’s degree in a technical field

10 years experience in sysadmin/engineering

Tools

Ansible

Docker

Podman

Kubernetes

VMware vSphere

Red Hat Satellite

Foreman

ACAS/Nessus

HBSS/Trellix

Job description

KBR is seeking a Senior Linux Systems Administrator with a focus on automation to join the team. The role centers on designing, deploying, and maintaining Linux-centric server architectures while ensuring DISA STIG and RMF compliance across distributed test networks.

You will streamline configuration management with Ansible, manage virtualization and container platforms, and contribute to documentation and operational procedures for secure DoD environments.