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Network Engineer - III

Job in San Diego, San Diego County, California, 92189, USA
Listing for: Sigma Defense Systems LLC
Full Time position
Listed on 2026-01-15
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Network Engineer, Network Security
Salary/Wage Range or Industry Benchmark: 75000 USD Yearly USD 75000.00 YEAR
Job Description & How to Apply Below
Position: 1520 - Network Engineer I - III

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Salary & Pay Range

This range is provided by Sigma Defense Systems LLC. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range $75,000.00/yr - $/yr

Sigma Defense is seeking a Network Engineer I-III to support the design, implementation, and sustainment of the Navy's enterprise networks. The hired candidate will design, configure, secure, automate, and document high-availability networks in both shipboard and lab environments while supporting the full lifecycle from installation through sustainment. This includes working on DoD initiatives such as SD-WAN, IPv6 Migration, Zero Trust Networks and Cross-Domain Network solutions.

They will work with SMEs in Cybersecurity, Systems Management, Systems Engineering, and Quality Assurance to learn the needs and goals of the system and shape the requirements of the network.

Equal Opportunity Employer/Veterans/Disabled
:
Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.

Requirements Network Engineer I
  • 0-2 Years of Experience
  • Knowledge of Network Access Control (Cisco ISE, Aruba Clear Pass, Forti

    NAC, Forescout)
  • Knowledge of Next-Gen Firewalls (Cisco Firepower, Palo Alto, Zscaler)
  • Knowledge of Network Devices such as Switches, Routers, Wireless Controllers/APs, Proxy Servers, VOIP, and NTP services
  • Knowledge of deployment automation tools (Ansible, Python, Power Shell)
  • Knowledge of delivering network artifacts such as IP plans, network templates, cable tables, network diagrams, ports/protocols documentation, and configuration guides
  • Security+ or CISSP and at least one industry certification (CCNA/Dev Net Associate)
  • Must be a U.S. Citizen
Network Engineer II
  • 3+ Years of Experience
  • Experience with Network Access Control (Cisco ISE, Aruba Clear Pass, Forti

    NAC, Forescout)
  • Experience with Next-Gen Firewalls (Cisco Firepower, Palo Alto, Zscaler)
  • Experience with Network Devices such as Switches, Routers, Wireless Controllers/APs, Proxy Servers, VOIP, and NTP services
  • Experience with deployment automation tools (Ansible, Python, Power Shell)
  • Experience with delivering network artifacts such as IP plans, network templates, cable tables, network diagrams, ports/protocols documentation, and configuration guides
  • Security+ or CISSP and at least one industry certification (CCNA/Dev Net Associate)
  • Must be a U.S. Citizen
Network Engineer III
  • 7+ Years of Experience
  • Expertise with Network Access Control (Cisco ISE, Aruba Clear Pass, Forti

    NAC, Forescout)
  • Expertise with Next-Gen Firewalls (Cisco Firepower, Palo Alto, Zscaler)
  • Expertise with Network Devices such as Switches, Routers, Wireless Controllers/APs, Proxy Servers, VOIP, and NTP services
  • Expertise with deployment automation tools (Ansible, Python, Power Shell)
  • Expertise with delivering network artifacts such as IP plans, network templates, cable tables, network diagrams, ports/protocols documentation, and configuration guides
  • Security+ or CISSP and at least one industry certification (CCNP/Dev Net Professional)
  • Must be a U.S. Citizen
Computer Software/Programs
  • Network Access Control
  • Switching/Routing
  • Firewall
  • Deployment Automation
Personnel Clearance Level
  • Candidate must possess or have the ability to obtain an active Secret security clearance or higher
  • Clearance will be sponsored for the right candidate
Education Requirements
  • Bachelor's or Technical Degree from an accredited college or university in an unspecified field of study
Essential

Job Duties (not all-inclusive)
  • Configure, install, and maintain network equipment, software and services across Navy Enterprise Network architecture to include switching, routing, firewall, proxy, wireless, call managers, network access control, voice over IP, and network time services
  • Design, develop, implement, and troubleshoot VLANs, routing protocols, IP addressing plans, and WAN…
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