Operating from our advanced facilities in Tustin, CA, we are seeking an experienced
Network Security Administrator to help secure and safeguard our enterprise infrastructure and support our CMMC Level 2 compliance program. This hands-on role will administers, monitors, and secures network infrastructure, cybersecurity platforms, cloud environments, and enterprise identity systems.
Key Responsibilities- Administer, configure, and maintain Palo Alto Networks technologies
- Manage firewall policies, network segmentation, VPN connectivity, secure remote access, and endpoint security controls
- Monitor network performance, system health, security alerts, and infrastructure availability
- Administer a variety of Microsoft Azure services
- Investigate suspicious activity, respond to endpoint and network security incidents, and support incident response, containment, recovery, and root-cause analysis
- Support CMMC Level 2 and NIST SP 800-171 compliance activities
- Maintain technical documentation, including system diagrams, SOPs, action plans, policies, and audit evidence
- Serve as the Tier III escalation point for all network, security, and infrastructure issues
- Support change management, perform vulnerability assessments, disaster recovery planning, backup validation, and business continuity initiatives
- Collaborate with various departments to implement secure and reliable solutions
Qualifications- Bachelor's degree in Information Technology, Cybersecurity, Computer Science, or a related technical field preferred. Equivalent professional experience will be considered.
- 5-8 years of experience in network administration, systems administration, cybersecurity, or enterprise IT infrastructure
- Hands-on experience with Palo Alto Networks technologies, including NGFW, Prisma Access, and/or Cortex XDR
- Experience supporting Windows Server, Linux, Microsoft Azure, Microsoft Entra ID, VPN technologies, patch management, endpoint security, and enterprise identity management
- Experience in regulated environments such as DoD, aerospace, manufacturing, or government contracting is highly preferred
- Working knowledge of CMMC Level 2, NIST SP 800-171, or similar cybersecurity compliance frameworks
- Strong understanding of TCP/IP, routing, switching, firewalls, VPNs, network segmentation, Active Directory, vulnerability management, and security hardening
- PowerShell, Bash, or other scripting experience is a plus
- Strong troubleshooting, documentation, communication, and prioritization skill
- Must currently hold active US Security Clearance, or posses the ability to obtain and maintain a Secret Security Clearance
- Ability to obtain an approved DoD 8570/8140 IAT Level III certification within 6 months of hire.
Preferred CertificationsPCNSA, Security+, CySA+, CCP
Highly Desired CertificationsCISSP, CASP+, CCSP, GCIH, or CISA.
You'll have the opportunity to make a direct impact by protecting the infrastructure that supports mission-critical defense programs. Working alongside talented engineers and technology professionals, you'll help strengthen our cybersecurity posture, support regulatory compliance, and contribute to innovative solutions that protect those who protect us.
