1520 - Network Engineer I - III job opportunity at Sigma Defense.

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Date2026-03-05T17:49:41.540Z bot
Sigma Defense 1520 - Network Engineer I - III
Experience: General
Pattern: Full-time
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degreeAssociate
loacation San Diego, United States Of America
loacation San Diego....United States Of America

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. Network Engineer I: 0-2 Years of Experience. Knowledge of Network Access Control (Cisco ISE, Aruba ClearPass, FortiNAC, 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, PowerShell). 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/DevNet Associate). Must be a U.S. citizen. Network Engineer II: 3+ Years of Experience. Experience with Network Access Control (Cisco ISE, Aruba ClearPass, FortiNAC, 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, PowerShell). 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/DevNet Associate). Must be a U.S. Citizen. Network Engineer III: 7+ Years of Experience. Expertise with Network Access Control (Cisco ISE, Aruba ClearPass, FortiNAC, 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, PowerShell). 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/DevNet 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 connectivity. Integrate external services including a wide variety of connected systems. Apply and validate network-related STIGs in coordination with cybersecurity personnel to ensure compliance with DoD security standards. Create, maintain, and update installation documentation, network diagrams, IP schemas, port mappings, and script/configurations for automated installations. Conduct diagnostics and fault isolation during official and unofficial test events as well as production installations. Collaborate with systems, software, and cybersecurity engineers to deliver secure and resilient network operations. Participate in shipboard testing, validation, and documentation. Salary Ranges: Network Engineer I : $75,000 - $100,000 annually. Network Engineer II : $85,000 – $115,000 annually. Network Engineer III : $120,000 – $150,000 annually.

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