System Administrator

Aviation Systems Engineering Company; Oxnard (CA); On-site; USD 130,000 - 145,000; Full time

Benefits offered by this job

Employee-owned (ESOP)

Excellent benefits package

401(k) with company match

Tuition assistance

Job summary

ASEC seeks a System Administrator to secure, sustain, and optimize DoD environments at NAS Point Mugu, CA. You will support mission-critical Navy training systems and manage security configurations (DISA STIG) while driving vulnerability management and accreditation efforts.

You will implement upgrades, perform RMF/ATO activities, and coordinate with cross-functional teams to maintain operational readiness of DoD systems with a strong cybersecurity focus.

Qualifications

• BS degree in Information Technology, Cybersecurity, Computer Science, or related area of study.
• CompTIA Security+ is required; other certs (Cloud+, CompTIA A+, CompTIA Network+) highly desired.
• 5 years of related system administration experience preferred.
• Strong working knowledge of vCenter/VMware is required.
• Experience with DoD HBSS is preferred.
• Experience with RMF/ATO activities and vulnerability scanning.
• Proficiency with Windows OS; Linux is a plus.

Responsibilities

• Plan, test, and implement system upgrades for performance and reliability.
• Support RMF and ATO activities, including vulnerability scanning and accreditation artifacts.
• Integrate new software into mission-critical DoD environments.
• Maintain OS security configurations in line with DISA STIG.
• Identify and resolve system flaws; implement technical controls for cybersecurity.
• Conduct vulnerability scans and assessments to safeguard systems.
• Troubleshoot and resolve software issues across integrated environments.
• Ensure compliance with DoD RMF, FISMA, NIST 800-53, and DoD SRG requirements.

Skills

System administration

Cybersecurity

RMF/ATO processes

Windows administration

Active Directory

Analytical thinking

Communication

Problem solving

Education

BS in IT / Cybersecurity / CS

Tools

VMware vCenter

HBSS

DNS management

Windows PowerShell

Job description

Location: NAS Point Mugu, CA

Security Clearance Requirement: Top Secret

Telework Eligible? No, work will be performed on site at NAS Point Mugu

What You’ll Do:

Support mission-critical Navy training systems at NAS Point Mugu, CA!

As a System Administrator, you will secure, sustain, and optimize complex DoD environments that directly enable warfighter readiness. This is a high-impact role for a technically strong professional who thrives in cybersecurity-focused, mission-driven operations.

Key Responsibilities:

• 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.
• Identify and resolve system flaws, implementing technical controls to strengthen cybersecurity.
• Conduct vulnerability scans and assessments to safeguard systems from potential threats.
• 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

What You’ll Bring:

• CompTIA Security+ is required. BS degree in Information Technology, Cybersecurity, Computer Science, or related area of study, desired. The following certifications are highly desired: Cloud+, CompTIA A+, CompTIA Network+, etc. 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.
• Proficiency with Windows operating systems is required; experience with Linux is a plus.
• Experience managing DoD Host Based Security Systems (HBSS) is preferred.
• 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.
• Familiarity with Windows PowerShell is preferred.

Equally Important:

• 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.

ASEC is committed to providing access and reasonable accommodation in its services, activities, programs, and employment opportunities in accordance with the Americans with Disabilities Act and other applicable laws.

Security Clearance Requirement:

• 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.

Salary Range:

• The anticipated annual salary range for this position is $130,000 - $145,000 annually, commensurate with an individual's experience, qualifications, and skill set. ASEC is committed to providing fair and equitable compensation. The low end of this salary range is accounting for a candidate that meets or exceeds all of the listed requirements.

Who We Are:

ASEC offers meaningful, mission-driven work within a culture that supports your professional and personal growth. We partner with our government customers to deliver innovative solutions across engineering, information technology, training, and logistics. Above all, we are committed to doing what's right for the Warfighter-plain and simple. Explore what makes ASEC different by visiting our website.

Why work at ASEC?

• 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

ASEC is an Equal Opportunity Employer. We recruit, hire, train, compensate, and promote employees based on qualifications, merit, and business needs, without regard to race, color, religion, sex, national origin, ancestry, age, marital status, sexual orientation, gender identity or expression, disability, veteran status, genetic information, pregnancy or related conditions (including breastfeeding), or any other status protected by law.

ASEC also complies with all applicable pay transparency laws and will not discriminate against employees or applicants for inquiring about, discussing, or disclosing compensation.