Network Security Engineer, Senior | Top Secret w/SCI eligibility
Ridge Crest, CAFull-time$150–170K/yrPosted 2w agoStill listed today
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At a glance
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Requirements
Credentials this posting asks for.
Job overview
AMERICAN SYSTEMS seeks a Senior Network Security Engineer to operate and secure classified network infrastructure for a Department of Defense customer at China Lake, California. The role combines Cisco network engineering and cybersecurity, with independent work on assigned priorities and collaboration with technical teams, customers, and vendors. Candidates need an active Top Secret clearance with SCI eligibility and must be able to obtain SAP access.
Skills & qualifications
Skills
Qualifications
Benefits
Full job description
Overview
AMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a Senior Network Security Engineer to help operate and secure classified network infrastructure for a Department of Defense customer at China Lake, CA.
In this role, you’ll bring together hands-on Cisco network engineering and cybersecurity skills to keep mission systems secure, reliable, and available. You’ll work independently on assigned priorities while partnering closely with technical teams, customers, and vendors to solve operational challenges.
Responsibilities
As a Senior Network Security Engineer with AMERICAN SYSTEMS, you will:
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Configure, administer, and troubleshoot Cisco routers and switches supporting classified networks.
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Install, maintain, and optimize enterprise LAN/WAN infrastructure.
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Monitor network health, system logs, backups, and scheduled jobs to help ensure reliable day-to-day operations.
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Support remote users with equipment setup and Layer 2/Layer 3 connectivity troubleshooting.
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Diagnose and resolve Cisco infrastructure, VPN, and VMware-related connectivity issues.
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Perform authorized software installations, upgrades, license management, and security patching.
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Manage user accounts and access controls in alignment with cybersecurity best practices and customer requirements.
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Support incident response, vulnerability remediation, and identification of potential security risks.
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Help maintain network procedures, technical documentation, and operational standards.
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Collaborate with internal teams and vendor representatives to resolve technical and operational issues.
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Work with minimal supervision while contributing to the overall security posture of the environment.
Qualifications
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Active Top Secret clearance w/SCI eligibility and ability to obtain SAP access
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U.S. citizenship, required to obtain and maintain a U.S. security clearance
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Bachelor’s degree in Information Technology, Cybersecurity, or a related field. Additional relevant experience may be considered in place of a degree.
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5–7 years of experience supporting enterprise networks in DoD, federal, or similarly regulated environments
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Current CCNA certification
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Current DoD 8140 IAT Level III certification, such as CASP+ CE, CCNP Security, CISA, CISSP or Associate, GCED, GCIH, CCSP, or CISM
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Hands-on experience configuring and maintaining Cisco network infrastructure
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Experience supporting or implementing the Risk Management Framework (RMF) in accordance with DoD and Department of the Navy cybersecurity requirements
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Familiarity with vulnerability management, patch compliance, and information assurance controls
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Experience supporting Solaris, Linux, or UNIX-based systems
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Experience installing or configuring intrusion detection systems, firewalls, or other perimeter defense technologies
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Experience supporting continuity of operations planning, failover testing, or system-availability documentation
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Experience integrating network infrastructure with broader enterprise systems
Growth Opportunity
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Candidates who have limited Solaris or systems engineering experience but strong network security fundamentals and a willingness to learn may be considered.
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This role offers the opportunity to build experience across network engineering, systems administration, and cybersecurity.
Note: This position supports a classified DoD environment. Candidates must be able to meet all security clearance and customer access requirements.
Pay Transparency Statement AMERICAN SYSTEMS is committed to pay transparency for our applicants and employee-owners. The salary range for this position is USD $150,000.00/Yr. - USD $170,000/Yr. Actual compensation will be determined based on several factors permitted by law. AMERICAN SYSTEMS provides for the welfare of its employees and their dependents through a comprehensive benefits program by offering healthcare benefits, paid leave, retirement plans, insurance programs, and education and training assistance. EEO Statement EEO Race/Sex/Disability Status/Veteran Status
How this job compares
Set against the 4,184 open Network Engineer jobs on Olive Jobs, counted November 10, 2026.
- Pay
- This posting$150–170K/yr
- California median$137–220K/yr327 salary ranges
- US median$113–187K/yr3,274 salary ranges
This range's midpoint, $160K, is 9% below the California median midpoint ($176K) — in the middle half of Network Engineer salary ranges in California.
- Openings
- Olive Jobs lists 395 open Network Engineer jobs in California and 4,184 across the US. 5% of them nationwide are listed as remote or flexible.
- Experience
- This posting asks for at least 5 years of experience; Network Engineer postings that state a minimum ask for 5 years at the median (3,614 postings).
- Education
- 1,164 of the 4,184 open Network Engineer jobs (28%) ask for a bachelor's degree or higher.
Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.
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