Demo

Network Security Engineer

Zachary Piper Solutions
Zachary Piper Solutions Salary
Washington, DC Full Time
POSTED ON 9/20/2026
AVAILABLE BEFORE 10/19/2026
Zachary Piper Solutions is seeking a Network Security Engineer to support a federal technology and engineering contractor that delivers cybersecurity, software development, cloud, intelligence, and mission support solutions to U.S. defense, intelligence, and civilian government agencies.. This role is 100% on-site in Washington D.C. and requires an active Top Secret security clearance with SCI eligibility.

This role is ideal for an experienced network engineer with deep expertise in Cisco security technologies, secure routing, and large-scale network infrastructure deployments. The ideal candidate will bring strong hands-on experience implementing and supporting enterprise security solutions within complex government environments.

Responsibilities of the Network Security Engineer:

  • Plans, coordinates, and implements the organization’s information security.
  • Analyzes requirements and potential solutions for technical and economic feasibility.
  • Design optimized firewall and IPS rule structure and ensures standards are maintained.
  • Monitors and maintains health of all firewalls/IPS and recommends improvements.
  • Develops and maintains documentation of firewall/IPS procedures.
  • Develops and maintains complex schematics relating to network security.
  • Researches, evaluates, recommends, designs, tests, and implements new network security technologies.
  • Displays expert knowledge of current security tools and practices.
  • Under general guidance, provides support to network engineers.

Qualifications for the Network Security Engineer:

  • 10 years of professional IT experience (YOE flexibility with educational degree)
  • Hands-on experience with at least 3-4 of the following technologies...
    • Cisco Identity Services Engine (ISE) – upgrades, licensing, maintenance, and deployment
    • Cisco Firepower – upgrades, maintenance, and deployment
    • Cisco ASA to Firepower Threat Defense (FTD) migrations
    • Cisco 802.1X deployment
    • DMVPN design and deployment (CNSSP-15 compliant)
    • Juniper ADVPN
  • Strong understanding of enterprise routing protocols including:
    • OSPF
    • EIGRP
    • BGP
  • Experience supporting complex enterprise or federal network environments.
  • Active Top Secret security clearance with SCI eligibility.
  • Ability and willingness to work fully onsite in Washington D.C.

Compensation for the Network Engineer:

  • Salary Range: $145,000 - $160,000 *depending on experience*
  • Comprehensive Benefits: Medical, Dental, Vision, 401k Plan, PTO, Holidays, Sick Leave if required by law

This job opens for applications on 07/22. Applications for this job will be accepted for at least 30 days from the posting date.

Keywords: Network Security Engineer, Network Security, Cisco, Cisco ISE, Cisco Identity Services Engine, Cisco Firepower, Firepower Threat Defense, FTD, Cisco ASA, ASA Migration, Firewall Engineering, Firewall Administration, IPS, Intrusion Prevention System, Cisco 802.1X, 802.1X, Network Access Control, NAC, DMVPN, Dynamic Multipoint VPN, CNSSP-15, Juniper, Juniper ADVPN, ADVPN, OSPF, EIGRP, BGP, Routing Protocols, Enterprise Networking, Network Infrastructure, Network Engineering, Network Design, Network Architecture, Secure Network Design, Network Security Architecture, Firewall Rule Management, Firewall Policy, Firewall Upgrades, Firewall Deployment, Firewall Maintenance, Cisco Security, Information Security, Cybersecurity, Enterprise Security, Federal IT, Government Contractor, DoD, TS/SCI, Top Secret Clearance, SCI Eligibility, WAN, LAN, VPN, Secure Routing, Technical Documentation, Network Monitoring, Infrastructure Engineering

Salary : $145,000 - $160,000

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