Network Engineer III - SIGINT - San Diego at Epsilon Systems Solutions, Inc – San Diego, California

Network Engineer III - SIGINT - San Diego
Job ID: 2026-52
Date Posted: 2026-02-06T00:00:00
Location: San Diego, California
Minimum Experience: 4 years
Education: Bachelor's Degree

Epsilon C5I (www.epsilonsystems.com/c5i), focused on software development and systems engineering for intelligence and combat systems, is seeking a Network Engineer III in San Diego, CA, with 4-8 years of experience, to join our team supporting secure network environments. The ideal candidate will have hands-on experience with network design, implementation, and troubleshooting, particularly within IL6 and IL7 environments. This position requires strong technical skills, attention to detail, and the ability to work in a fast-paced, mission-critical environment.

Responsibilities:

• Assist in the design, configuration, and maintenance of secure network infrastructures for IL6 and IL7 environments.

• Install, configure, and troubleshoot routers, switches, firewalls, and other network devices.

• Monitor network performance and resolve connectivity issues.

• Collaborate with cybersecurity teams to ensure compliance with DoD and IC security standards.

• Maintain accurate network documentation and diagrams.

• Support accreditation and continuous monitoring activities for classified networks.

Required Qualifications:

• Bachelor's degree in Computer Science, Computer Engineering or related discipline.

• Four to eight (4-8) years of experience in network engineering.

• Familiarity with IL6 and IL7 environments.

• Working knowledge of TCP/IP, DNS, DHCP, VPNs, VLANs, and routing protocols (BGP, OSPF, EIGRP).

• Experience with Cisco or similar network technologies.

• Understanding of RMF and STIG compliance requirements.

• Active TS/SCI clearance with CI Polygraph.

• Security+ certification (DoD 8570 compliant).

• Pursuant to the various government contractual requirements, all applicants must be a U.S. Citizen.

Preferred Qualifications:

• Additional certifications such as CCNA, CCNP, or equivalent.

• Experience with network monitoring tools.

• Exposure to cloud networking in secure environments (AWS GovCloud, Azure Government).

• Basic scripting skills (Python, PowerShell) for automation.

Pay Range:

The pay range for this role is $120,000 To $160,000 Annually. This is a reasonable estimate for this role. Individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

ADA Notations:

• Regular communication (hearing/speaking)

• Noise conditions range from very quiet to very noisy

• Prolonged use of computer (typing/keyboarding)

• Frequently required to sit for long periods of time, stand, walk, and may occasionally lift and move at least 25 pounds

• Ability to travel by car, air or other means of transportation, if required

Epsilon Systems Solutions, Inc. is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.