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# Senior Network Security Engineer

- **Company:** Caci Inc
- **Location:** Columbia, MD, United States
- **Experience:** Expert
- **Salary:** $120,800.0 - $265,800.0
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, Complex Networks, Network Security, Network Troubleshooting, Operational Data Store, Wide Area Networks, Wireless Networks, Symantec, Mttr, Hardware Testing, Cisco
- **Published:** August 10, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8921361/senior-network-security-engineer

## About the Role

Required:

 * An active NSA TS/SCI with Polygraph.
 * 8+ years of Network Security Engineering experience supporting complex SIGINT hardware systems.
 * Bachelor's degree in a related technical field, or 5 additional years of experience in lieu of degree.
 * DoD 8570 IAT Level II certification.
 * At least three of the following certifications:
 - PCNSA
 - SNSA
 - SNSP
 - Symantec ProxySG 6.7 Technical Specialist
 - Cisco CCNA or higher

## Description

* 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 unique project needs.
 * Support systems engineering teams by modeling and analyzing proposed solutions.
 * Design, verify, and implement hardware test interfaces.
 * Perform MTBF/MTTR analyses to strengthen reliability and maintainability.
 * Analyze operational data to identify system vulnerabilities and performance gaps.
 * Evaluate LAN/WAN designs and ensure architectures adhere to mission security needs.
 * Research and assess COTS/GOTS technologies to drive mission capability.
 * Provide high-level expertise in network engineering, architecture, and planning.
 * Contribute to technical standards, interface specifications, and network troubleshooting.
 * Ensure system designs and implementations meet all government security requirements.
 * Develop and enhance security documentation for new and existing systems.
 * Support wired and wireless network analysis and optimization.
 * Conduct vendor comparisons, cost studies, and system scalability assessments.
 * Deliver independent evaluations of complex network ecosystems and recommend enhancements.
 * Identify and brief system weaknesses with clear, actionable recommendations.


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