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# Network Security Engineer

- **Company:** Zachary Piper
- **Location:** Washington, DC, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** IEEE 802.1X, User Authentication, Border Gateway Protocol, Cisco PIX, Dynamic Multipoint Virtual Private Networks, Enhanced Interior Gateway Routing Protocol, Network Security, Routing, Open Shortest Path First (OSPF), Identity Services Engine, Juniper, Information Technology, Routing & Switching, Firepower, Cisco
- **Published:** June 16, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8977779/network-security-engineer

## About the Role

* 10+ years of overall IT experience
 * Bachelor's degree in a related field (strongly preferred)
 * Hands-on experience with Cisco Identity Services Engine (ISE), including upgrades, deployment, and licensing
 * Proven experience with Cisco Firepower and ASA to FTD migrations
 * Strong knowledge of Cisco 802.1X deployment and authentication frameworks
 * Experience designing and deploying DMVPN (CNSSP-15 compliant) and Juniper ADVPN
 * Solid understanding of routing protocols including OSPF, EIGRP, and BGP
 * Active Top Secret security clearance (required)

Preferred Certifications:

 * CCNP Security
 * CCNP Enterprise (Routing & Switching)
 * CCDP

## Description

* Design, implement, and optimize firewall and IPS rule structures to ensure security standards are maintained
 * Monitor, maintain, and improve the health and performance of firewalls and intrusion prevention systems (IPS)
 * Plan and coordinate enterprise-wide network security initiatives and solutions
 * Develop and maintain documentation, schematics, and procedures related to network security infrastructure
 * Research, evaluate, test, and implement new security technologies and tools
 * Support network engineering teams with expert-level security guidance
 * Lead migrations from Cisco ASA to Firepower Threat Defense (FTD) environments


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