Senior Network Security Engineer – DoD/CANES Compliance

Sigma Defense Systems LLC; San Diego (CA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Dental insurance

Vision insurance

Medical with HSA

Life insurance

AD&D coverage

Employee Assistance Program

401(k) with match

PTO 160 hours

Paid holidays

Educational assistance

Job summary

Sigma Defense Systems LLC seeks a Network Security Engineer III in San Diego, CA to enforce DoD cybersecurity policies across CANES systems. The role emphasizes hands-on system hardening, vulnerability management, and automation using GitLab/GitHub and Spork.

Qualified candidates will have 5–10 years of relevant experience, U.S. citizenship, a Bachelor's degree, and certifications like Security+ CE or CISSP. Active Secret clearance or ability to obtain is required.

Qualifications

• 5 - 10 years of experience.
• Must be a U.S. citizen.
• Bachelor's degree from an accredited college or university.

Responsibilities

• Implement and enforce DoD cybersecurity policies (STIGs, RMF, NIST SP 800-53) across CANES systems.
• Design, Develop, implement and troubleshoot solutions for vulnerabilities within the CANES system.
• Lead efforts to harden Windows/Linux systems, applications, network devices, and various hardware within the CANES environment.
• Assist with IAVM compliance, log analysis, and audit readiness tasks.
• Perform patch management, system scanning, and incident response coordination.
• Maintain system documentation, cybersecurity artifacts, and baseline reports.
• Support system validation during test events, site assessments, and production installations.
• Design, develop, and automate configurations on the following platforms: RHEL, Windows, SIEM/SOAR, ACAS, Spork/Spork+.

Skills

System hardening

Vulnerability management

Configuration automation

Incident response

Log analysis

GitLab/GitHub automation

Education

Bachelor's degree from an accredited college or university

Tools

ACAS

Trellix ESS

Spork/Spork+

NetIQ Sentinel

Splunk

Job description

Sigma Defense Systems LLC seeks a Network Security Engineer III in San Diego, CA to enforce DoD cybersecurity policies across CANES systems. The role emphasizes hands-on system hardening, vulnerability management, and automation using GitLab/GitHub and Spork.

Qualified candidates will have 5–10 years of relevant experience, U.S. citizenship, a Bachelor's degree, and certifications like Security+ CE or CISSP. Active Secret clearance or ability to obtain is required.