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Senior Network Security Engineer – Top Secret w/SCI eligibility
AMERICAN SYSTEMS. Configure, administer, and troubleshoot Cisco routers and switches supporting classified networks .
Posted 10/22/2026full-timeRidgecrest • California • United StatesSenior💰 $150,000 - $170,000 per yearWebsite
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in configuring and maintaining Cisco network infrastructure while ensuring compliance with cybersecurity best practices. Proficient in incident response, vulnerability remediation, and supporting enterprise networks in regulated environments.
Highest-signal resume keywords
Cisco Network Infrastructure ConfigurationCurrent CCNA CertificationDoD 8140 IAT Level III CertificationExperience Supporting Risk Management Framework (RMF)Active Top Secret Clearance
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
LAN/WAN Infrastructure OptimizationNetwork Health MonitoringLayer 2/Layer 3 TroubleshootingVPN Connectivity DiagnosisSoftware Installation and Security PatchingUser Account ManagementVulnerability ManagementIntrusion Detection Systems ConfigurationContinuity of Operations PlanningSystem Availability Documentation
Soft Skills
Collaboration with Internal TeamsIndependent Work Contribution
Tools & Technologies
Cisco RoutersCisco SwitchesVMwareSolarisLinuxUNIX-based Systems
Certifications & Qualifications
CCNA CertificationDoD 8140 IAT Level III Certification
Industry Keywords
Cybersecurity Best PracticesIncident ResponseVulnerability RemediationDoD RegulationsInformation Assurance Controls
Tech Stack
Tools & technologiesCyber SecurityFirewallsLinuxUnixVMware
About the role
Key responsibilities & impact- Configure, administer, and troubleshoot Cisco routers and switches supporting classified networks
- Install, maintain, and optimize enterprise LAN/WAN infrastructure
- Monitor network health, system logs, backups, and scheduled jobs
- Support remote users with equipment setup and Layer 2/Layer 3 connectivity troubleshooting
- Diagnose and resolve Cisco infrastructure, VPN, and VMware-related connectivity issues
- Perform authorized software installations, upgrades, license management, and security patching
- Manage user accounts and access controls according to cybersecurity best practices and customer requirements
- Support incident response, vulnerability remediation, and identification of potential security risks
- Maintain network procedures, technical documentation, and operational standards
- Collaborate with internal teams and vendor representatives to resolve technical and operational issues
- Work independently while contributing to the overall security posture of the environment
Requirements
What you’ll need- Active Top Secret clearance with SCI eligibility and ability to obtain SAP access
- U.S. citizenship, required to obtain and maintain a U.S. security clearance
- Bachelor’s degree in Information Technology, Cybersecurity, or a related field; additional relevant experience may be considered in place of a degree
- 5–7 years of experience supporting enterprise networks in DoD, federal, or similarly regulated environments
- Current CCNA certification
- Current DoD 8140 IAT Level III certification, such as CASP+ CE, CCNP Security, CISA, CISSP or Associate, GCED, GCIH, CCSP, or CISM
- Hands-on experience configuring and maintaining Cisco network infrastructure
- Experience supporting or implementing the Risk Management Framework (RMF) in accordance with DoD and Department of the Navy cybersecurity requirements
- Familiarity with vulnerability management, patch compliance, and information assurance controls
- Experience supporting Solaris, Linux, or UNIX-based systems
- Experience installing or configuring intrusion detection systems, firewalls, or other perimeter defense technologies
- Experience supporting continuity of operations planning, failover testing, or system-availability documentation
- Experience integrating network infrastructure with broader enterprise systems
- Ability to meet all security clearance and customer access requirements
Benefits
Comp & perks- Healthcare benefits
- Paid leave
- Retirement plans
- Insurance programs
- Education and training assistance
- 100% employee-owned company