Top 7 Senior network administrator Jobs in Irvine Ca

Senior System and Network Administrator
Design West Technologies —Tustin, CA
- $150,000 - $180,000 a year
- Full-time
- Computer science
- Computer Science
- 5 years
- Health insurance
- Dental insurance
Quick Apply
Senior System Administrator (Full-Time)
Penhall Company —Anaheim, CA
- $80,000 - $120,000 a year
- Full-time
- Office
- SQL
- Bachelor's degree
- AD&D insurance
- Disability insurance
Senior Systems Administrator
Anduril Industries —Costa Mesa, CA
- $146,000 - $194,000 a year
- Email
- 8 years
- Scripting
- Senior level
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Sr. System Administrator
Financial Partners Credit Union —Costa Mesa, CA
- $115,763 - $162,200 a year
- Computer science
- Computer Science
- Research
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I.T. - Senior Network Engineer
Southland Credit Union —Los Alamitos, CA
- $113,000 - $141,000 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- 5 years

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Senior System and Network Administrator

Design West Technologies -
Tustin, CA

Quick Apply

Job Details

Full-time
$150,000 - $180,000 a year

Benefits

Health insurance
Dental insurance
401(k)
Paid time off
Vision insurance
Life insurance

Qualifications

Performance monitoring
CCNP Security
Endpoint Security
CMMC
Certified Information Systems Auditor
Computer science
Network documentation
Defect resolution root cause analysis
Bachelor's degree in information technology
Computer Science
Linux support
Procedural guides
Technical documentation
5 years
CISSP
Cloud security management
CompTIA CySA+
Operating system updates
Public Cloud
Incident Escalation
DoD experience
Security compliance frameworks implementation
CCSP
Bash
Next-Generation Firewalls (NGFWs)
Security data analysis
Network configuration for security systems
Security system vulnerability testing
CompTIA Advanced Security Practitioner
Patch management

Full Job Description

Protect Critical Infrastructure. Secure the Mission.

For more than a decade, Design West Technologies Inc. has been a trusted partner to the Department of Defense (DoD), delivering mission-critical design engineering and rugged manufacturing solutions that support our nation's warfighters. As we enter our next phase of growth, we are combining our strong defense heritage with the agility and innovation of a fast-paced organization.

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
Install, configure, patch, maintain, and upgrade Windows Server 2016–2022 and Linux systems
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 Certifications

PCNSA, Security+, CySA+, CCP

Highly Desired Certifications

CISSP, CASP+, CCSP, GCIH, or CISA.

Why Join Us?

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. EEO employer including veterans & individuals with disabilities.

Quick Apply

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senior network administrator jobs in irvine ca

Senior System and Network Administrator

Senior System Administrator (Full-Time)

Senior Systems Administrator

Sr. System Administrator

I.T. - Senior Network Engineer

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