Linux System Adminstrator

ASEC • Ridgecrest, CA

3h • Onsite

About The Position

Support mission-critical Navy training systems at NAWS China Lake, CA!

As a Linux System Administrator, you will be responsible for ensuring secure configurations, producing accreditation artifacts, and maintaining hardened baselines — all with a focus on reliability and long-term system assurance. The ideal candidate is not only technically strong, but also thoughtful, process-oriented, and one who takes a careful, methodical approach to systems management.

Key Responsibilities:
Maintain and secure Linux operating system environments in compliance with DISA STIGs to support classified mission systems.
Plan, test, and implement system upgrades to ensure optimal performance and reliability.
Support RMF and ATO activities, including vulnerability scanning (ACAS, Evaluate STIG) and development of accreditation artifacts.
Integrate new software applications within complex, mission-critical environments.
Apply and maintain operating system security configurations in alignment with DISA STIG requirements.
Monitor Linux and virtualization platforms for availability, performance, and security to ensure mission continuity.
Identify and resolve system flaws, implementing technical controls to strengthen cybersecurity.
Conduct vulnerability scans and assessments to safeguard systems from potential threats.
Develop and release hardened RHEL templates on a quarterly basis, including documentation required for ATO submissions.
Utilizing tools such as Jira and Microsoft Teams in order to track trouble tickets.
Troubleshoot and resolve software issues within integrated environments to maintain seamless operations.
Ensure compliance with DoD RMF, FISMA, NIST 800-53, and DoD SRG requirements.
This description outlines the general nature and scope of the role. Additional duties may be assigned as necessary.

Requirements

• Candidates must meet DoD 8140-M Intermediate level (or higher) qualification requirements. Candidates must also have a current Operating System certification (e.g., Windows Server, Linux+, Red Hat Certified System Administrator, etc.). At a minimum, CompTIA Security + CE will be required for this position. Please upload copies of any relevant IT certifications you hold.
• 5 years of related system administration experience is preferred.
• Strong working knowledge of vCenter/VMware is required.
• Must have a deep level of knowledge and experience with Red Hat Enterprise Linux (RHEL).
• Demonstrated experience managing Domain Name System (DNS) performance and reliability.
• Proven experience implementing and maintaining local and group policies.
• Hands-on experience with Microsoft Active Directory (AD) domain controller servers for managing authentication, authorization, and network resources.
• Knowledge of log aggregation and analysis across multiple sources.
• Ability to build positive, collaborative relationships across teams and with external partners.
• Effective communicator with strong verbal and written skills.
• Proactive, self-directed work style with the ability to operate independently.
• Analytical thinker with proven problem-solving capabilities.
• Highly organized, with the ability to balance competing priorities in a fast-paced environment.
• This position requires U.S. citizenship and an active DoD Top Secret clearance. Selected candidate will be subject to a government security investigation and must meet eligibility requirements for access to classified information.

Nice To Haves

• Experience managing DoD Host Based Security Systems (HBSS) is preferred.
• Familiarity with the Red Hat Ansible Automation Platform.

Responsibilities

• Maintain and secure Linux operating system environments in compliance with DISA STIGs to support classified mission systems.
• Plan, test, and implement system upgrades to ensure optimal performance and reliability.
• Support RMF and ATO activities, including vulnerability scanning (ACAS, Evaluate STIG) and development of accreditation artifacts.
• Integrate new software applications within complex, mission-critical environments.
• Apply and maintain operating system security configurations in alignment with DISA STIG requirements.
• Monitor Linux and virtualization platforms for availability, performance, and security to ensure mission continuity.
• Identify and resolve system flaws, implementing technical controls to strengthen cybersecurity.
• Conduct vulnerability scans and assessments to safeguard systems from potential threats.
• Develop and release hardened RHEL templates on a quarterly basis, including documentation required for ATO submissions.
• Utilizing tools such as Jira and Microsoft Teams in order to track trouble tickets.
• Troubleshoot and resolve software issues within integrated environments to maintain seamless operations.
• Ensure compliance with DoD RMF, FISMA, NIST 800-53, and DoD SRG requirements.

Benefits

• 100% employee-owned company. Learn more about our Employee Stock Ownership Plan (ESOP) here!
• Comprehensive benefits package, including 11 paid holidays, medical/dental/vision coverage, HSA/FSA options, disability insurance, and more!
• 401(k) with company match
• Tuition assistance for undergraduate and graduate education
• Veteran-friendly employer
• Thriving employee culture

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed