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# Network Security Engineer (CI Polygraph)

- **Company:** Zachary Piper
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $150,000.0 - $175,000.0
- **Contract:** Permanent contract
- **Skills:** IEEE 802.1X, Microsoft Windows, Antivirus Softwares, Application Firewall, Bash Shell, Cyber Security, Data Centers, Linux, Perl (Programming Language), Network Security, Network Architecture, Network Monitoring, Network Service, Nmap, Open Source Technology, Transmission Control Protocol (TCP), Tcpdump, Extensible Markup Language (XML), Network Routers, Scripting, Identity Services Engine, Load Balancing, In-Plane Switching (IPS), Firewalls (Computer Science), Network Support, Nessus, Operating System Security
- **Published:** June 4, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8955667/network-security-engineer-ci-polygraph

## About the Role

* Active TS/SCI CI Polygraph required in order to be considered
 * Bachelor's degree from an accredited college in a related discipline and 7+ years of prior relevant experience
 * IAT Level II (GSEC, Security+, SSCP, or CCNA-Security) certification required
 * Minimum/general experience: 10 years of related network experience (firewalls, routers, switches and load balancers)
 * Experience with vendor-neutral C2C capabilities and services, open-source components, DoD integration and networks, and DoD engineering and sustainment procedures to provide real-time C2C expertise is advantageous.
 * Assist with the implementation of cyber security tools to network infrastructure
 * Implement DoD standards and cyber best practices to secure the environment (NIST, STIGs)
 * Cisco Identity Services Engine (ISE) experience is preferred but not mandatory.
 * Strong understanding of Windows and Linux systems, operating system security practices, TCP/IP networking, 802.1x, and network security concepts is essential.
 * Expertise in technologies for large-scale enterprise deployments and data centers.
 * Experience deploying and supporting enterprise security software products, including firewalls, IPS, antivirus solutions, application firewalls, high availability solutions, network management systems, and virtual systems.
 * Proficiency with tools such as Nmap, Nessus, and tcpdump.
 * Working knowledge of shell, Perl, and XML scripting.

## Description

* Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, enhance, and maintain C2C services. This includes managing and maintaining appliances, applications, servers, and infrastructure in both unclassified and classified environments.
 * Collaborate with the network service provider to develop and maintain network architecture diagrams.
 * Assess and recommend changes or technology upgrades to improve performance, standardization, and align with industry best practices.
 * Monitor and investigate C2C performance and faults, providing recommendations for improvements.
 * Engage with team members and customers at various levels to gather, provide, or coordinate information.
 * Strong communication and customer service skills are essential, along with the ability to effectively coordinate with individuals across multiple levels and teams.
 * Support Assessment and Authorization activities related to cybersecurity technologies, where applicable.


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