On-Site DoD Linux SysAdmin (Top Secret)

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

Benefits offered by this job

Employee ownership (ESOP)

Competitive benefits package

401(k) with company match

Tuition assistance

Veteran-friendly employer

Job summary

ASEC is seeking a Linux System Administrator to support mission-critical Navy training systems at NAWS China Lake, CA. The role emphasizes securing and sustaining DoD environments to enable warfighter readiness.

You will implement STIGs, manage ACAS and STIG evaluations for ATO, patch VMware ESXi, automate tasks with Ansible, and maintain RMF/NIST/NIST 800-53 compliance. This is an on-site, Top Secret position requiring U.S. citizenship.

Qualifications

• CompTIA Security+ is required; degree or 5 years of relevant experience may be accepted.
• Candidates must obtain an approved OS certification within 90 days of hire.
• 5 years of related system administration experience preferred.
• Strong working knowledge of Linux required.
• Experience managing DoD HBSS preferred.
• Experience DNS performance and reliability.
• Experience implementing and maintaining local and group policies.
• PowerShell experience preferred.

Responsibilities

• Apply DISA STIGs to secure Linux configurations and prevent misconfig.
• Manage ACAS and Evaluate STIG for ATO compliance and security posture.
• Maintain and secure VMware ESXi hypervisors, including patching and hardening.
• Automate routine tasks using Red Hat Ansible Automation Platform.
• Apply RHEL updates monthly to maintain a secure environment.
• Collaborate with DevOps and security teams on automation practices.
• Release RHEL hardened templates quarterly with documentation and ATO submission.
• Monitor Linux and ESXi environments for performance, availability, and security.

Skills

Linux

Security+

HBSS

AD Domain

DNS

PowerShell

STIGs

VMware ESXi

Education

Bachelor's degree in IT/Cybersecurity/CS

Tools

VMware ESXi

Job description

ASEC is seeking a Linux System Administrator to support mission-critical Navy training systems at NAWS China Lake, CA. The role emphasizes securing and sustaining DoD environments to enable warfighter readiness.

You will implement STIGs, manage ACAS and STIG evaluations for ATO, patch VMware ESXi, automate tasks with Ansible, and maintain RMF/NIST/NIST 800-53 compliance. This is an on-site, Top Secret position requiring U.S. citizenship.