Network Engineer *TS​/SCI

Zachary Piper Solutions is seeking a Network Engineer to support a federal program out of Springfield, VA. The Network Engineer will be responsible for supporting complex network environments, troubleshooting escalated issues and ensuring secure and efficient network operations.
*** This role requires an Active Top Secret (TS) Clearance for consideration. ***

• Participate in hands‑on installation and implementation of network technologies
• Configure and troubleshoot network devices using CLI, deploy patches, and optimizing layer 2/layer 3 protocols
• Support cloud networking technologies such as Azure Virtual Networks and Express Route and integrate with on‑prem infrastructure
• Participate in Layer 1 troubleshooting/configuration cable types, media converters, and telco circuits
• Maintain and optimize routers, switches, and firewalls
• Set up and maintain VPNs (site‑to‑site and remote access) ensuring secure connectivity

• 3+ years of experience working in network engineering
• Hands on experience with CLI, deploy patches, routers, switches, firewalls, TACLANEs, GEM One, Cisco IOS/NX‑OS, Palo Alto firewalls, F5 load balancers, VPN technologies
• Extensive experience with Windows, Unix, and Linux operating systems
• Strong understanding of Layer 2 and Layer 3 networking protocols
• Must be willing to travel (~1 week a month OCONUS/CONUS)
• Must hold active Top Secret Clearance with SCI eligibility
• Bachelor’s degree in related field

• Salary:
  Up to $170,000 annually
  * commensurate of experience*
• Comprehensive Benefits:
  Full Medical, Dental & Vision Insurance, 401k, PTO (Paid Time Off), Paid Holidays, Sick leave as required by law

This job opens for applications on 1/30/2026. Applications for this job will be accepted for at least 30 days from the posting date.

Keywords:

Network engineer, network administrator, mission critical, federal, CLI, network deployment, network configuration, Layer 1, layer 2, layer 3, BGP, border gateway protocol, MPLS, multiprotocol label switching, label switching, SD-WAN, WAN, LAN, taclane, load balancer, load balancing, cable management, media converter, VPN, virtual private network, remote access, Cisco, Palo Alto, router, switch, firewall, GEM One, F5, top secret, TS/SCI, TS SCI, TSSCI, polygraph, poly, azure, express route, express route, demark, internet transport, CPE, circuits, cable type, juniper, virtual network, cloud network, network design, network architect, infrastructure, network troubleshooting, command line interface, TCP/IP, software‑defined, wide area network, Fortinet, NAT, network virtual appliance, telco, IDS, IPS, solarwinds, wireshark, DNS, DHCP, CCNA, CCNP, sec+, compTIA