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# 1520 - Network Engineer I - III

- **Company:** Sigma Inc.
- **Location:** San Diego, CA, United States
- **Experience:** Starter
- **Salary:** $75,000.0 - $100,000.0
- **Contract:** Permanent contract
- **Skills:** Proxy Servers, Software Applications, VoIP, Computer Networks, Networking Hardware, IP Addressing, Python (Programming Language), Network Diagrams, Routing, Network Time Protocols, Windows PowerShell, Ansible, Virtual Local Area Networks, Network Routers, Identity Services Engine, Network Access Control, Computer Network Operations, Firewalls (Computer Science), Forescout, Deployment Automation, Routing & Switching, Firepower, Cisco
- **Published:** November 2, 2026
- **Apply:** https://www.juju.com/job/15_f91f2f3e17

## About the Role

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 may 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.

## Description

* 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.