Linux System Administrator (DoD TS) - Onsite, Mission-Critical

ASEC; Ridgecrest (CA); On-site; USD 110,000 - 135,000; Full time

Benefits offered by this job

Employee-owned (ESOP)

Medical/dental/vision coverage

401(k) with company match

Tuition assistance

Veteran-friendly employer

Competitive compensation

Job summary

ASEC is seeking a Linux System Administrator to support NAWS China Lake, CA. You will secure, sustain, and optimize DoD Linux environments, applying STIGs and managing ACAS assessments. The role requires DoD Top Secret clearance and on-site work at NAWS China Lake, CA.

You will automate tasks with Ansible, patch RHEL, and help maintain RMF/NIST compliance while coordinating with DevOps and security teams to ensure mission readiness.

Qualifications

• Bachelor's degree required or 5 years of related experience in lieu.
• 5+ years of system administration in Linux environments preferred.
• Strong Linux knowledge is required.
• DoD cybersecurity experience is a plus.
• Active DoD Top Secret clearance or ability to obtain one.

Responsibilities

• Secure, sustain, and optimize DoD Linux environments.
• Apply DISA STIGs to Linux and VMware ESXi configurations.
• Manage ACAS vulnerability assessments and accreditation artifacts.
• Automate routine tasks with Ansible for consistency.
• Patch and harden RHEL systems on a monthly cadence.
• Maintain RMF/NIST 800-53 compliance documentation.
• Maintain system health via monitoring and logs.
• Collaborate with DevOps and security teams.

Skills

Linux admin

STIGs management

ACAS evaluations

VMware ESXi

Ansible automation

RMF/NIST DoD

Active Directory

Patching & hardening

Education

Bachelor's in IT or related field

5 years DoD sysadmin experience (in lieu of degree)

Tools

ACAS

STIGs

VMware ESXi

Ansible Automation Platform

Windows PowerShell

Job description

ASEC is seeking a Linux System Administrator to support NAWS China Lake, CA. You will secure, sustain, and optimize DoD Linux environments, applying STIGs and managing ACAS assessments. The role requires DoD Top Secret clearance and on-site work at NAWS China Lake, CA.

You will automate tasks with Ansible, patch RHEL, and help maintain RMF/NIST compliance while coordinating with DevOps and security teams to ensure mission readiness.