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Network Security Engineer with Security Clearance

Zachary Piper Solutions, LLCWashington, DC🇺🇸United StatesPosted 13 Jul 2026

Why This Role Stands Out

This role offers an exciting opportunity to design and implement cutting-edge network security architectures, leading critical technology migrations and providing expert guidance within a reputable government-focused organization. You'll thrive here if you possess extensive experience with Cisco and Juniper technologies, a passion for problem-solving, and an active Top Secret clearance, making this an ideal position to further develop your cybersecurity expertise. Apply now to leverage your skills and contribute to vital security initiatives.

Quick Overview

Work Type
On Site
Level
Mid Senior

Job Description

Piper Companies is seeking a Senior Network Security Engineer to support a government-focused organization. This position is onsite and requires an active Top Secret clearance. The role focuses on designing, implementing, and maintaining advanced network security architectures, with a strong emphasis on Cisco and Juniper technologies. Responsibilities for the Senior Network Security Engineer include:

  • 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
Required Qualifications for the Senior Network Security Engineer include:
  • 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
Compensation for the Senior Network Security Engineer includes:
  • Salary: Competitive based on experience
  • Full Benefits Package: PTO, Paid Holidays, Medical, Dental, Vision, 401(k), and additional benefits (details to be provided) #LI-MJ1 #LI-ONSITE Keywords: Network Security, Cisco ISE, Cisco Firepower, ASA to FTD Migration, 802.1X, DMVPN, Juniper ADVPN, OSPF, EIGRP, BGP, Firewall Engineering, IPS, Intrusion Prevention, Network Architecture, CCNP Security, CCNP Enterprise, CCDP, Top Secret Clearance, Government Contractor, Onsite, Cybersecurity, Routing Protocols, Secure Network Design

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