Senior Network Security Engineer – TS/SCI Impact

CACI International; New York (NY); On-site; USD 140,000 - 180,000; Full time

Job summary

CACI International is seeking a Senior Network Security Engineer to design, evaluate, and secure complex network and hardware systems supporting intelligence operations. You will partner with mission stakeholders, engineers, and technical teams to deliver secure, reliable, and innovative solutions.

This role emphasizes hands-on assessment, hardware installation leadership, vulnerability analysis, and compliance with government security requirements.

Qualifications

• Active NSA TS/SCI with Polygraph required.
• 8+ years of network security engineering for complex SIGINT hardware.
• Bachelor's degree or 5 years of experience in lieu of degree.
• DoD 8570 IAT Level II certification.
• At least three of the listed certifications: PCNSA, SNSA, SNSP, Symantec ProxySG 6.7, Cisco CCNA or higher.

Responsibilities

• Conduct onsite assessments and document current network architectures and mission-specific requirements.
• Lead and coordinate hardware installations across multiple environments.
• Recommend hardware specifications tailored to project needs.
• Support systems engineering teams by modeling and analyzing proposed solutions.
• Design, verify, and implement hardware test interfaces.
• Perform MTBF/MTTR analyses to improve reliability.
• Analyze operational data to identify vulnerabilities and performance gaps.
• Evaluate LAN/WAN designs to meet mission security needs.
• Research and assess COTS/GOTS technologies for mission capability.
• Provide high-level expertise in network engineering, architecture, and planning.
• Develop security documentation for new and existing systems.
• Ensure designs meet government security requirements.

Skills

Network security engineering

Threat analysis

Security collaboration

Education

Bachelor's degree or 5 years experience

5+ years alternative experience

Tools

PCNSA

SNSA

SNSP

Symantec ProxySG 6.7

Cisco CCNA or higher

Job description

CACI International is seeking a Senior Network Security Engineer to design, evaluate, and secure complex network and hardware systems supporting intelligence operations. You will partner with mission stakeholders, engineers, and technical teams to deliver secure, reliable, and innovative solutions.

This role emphasizes hands-on assessment, hardware installation leadership, vulnerability analysis, and compliance with government security requirements.