✦ Luna Orbit — Networking & Telecom

Design Engineer (Network Designer III) (Government)

at AT&T

📍 Chantilly, Virginia Onsite 💰 $89K – $220K USD / year Posted March 31, 2026
Salary $89K – $220K USD / year
Type Full-Time
Experience senior
Exp. Years 16+ years
Education Not specified
Category Networking & Telecom

Design Engineer (Network Designer III) for Government to design, engineer, and transition CAN/LAN networks across classified environments with Cisco technologies.

  • Evaluate new network technologies
  • Plan configurations for government networks
  • Oversee security measures and performance
  • Provide tier 3 troubleshooting
  • Coordinate with teams for design and transition

CAN/LAN design, OSPF/BGP routing, VLANs/802.1Q, Cisco Nexus/Catalyst, ASA/ISR/XE devices, VMware/Nutanix virtualization, security-focused operations

The ideal candidate is a senior network designer with DoD security clearance (TS/SCI with poly) and 16+ years of CAN/LAN design experience, capable of leading complex government network design projects with Cisco technologies.

16 years of experience in network engineering and designDoD 8140 Information Assurance Technical (IAT) Level 2Experience with production network hardware configurations (CiscoBrocadeand/or Juniper)Hands-on experience with OSPF or BGPVLANs and 802.1QPort-channelsCCNACCNP Enterprise or higher (preferred)
CCNP Enterprise or higherCCIECISSPExperience with MPLS WANsNexus/Catalyst/ASA/ISR/XE experienceAWS/Azure experience
Cisco NexusCisco CatalystASAISRXEVMwareNutanixLiveActionWindows ServerLinux
CAN/LANCiscoBGPOSPFVLANs802.1QPort-channelCAN/LANNexusCatalystASAISRXEVMwareNutanix
Cisco IOSCisco routingOSPFBGPVLANs802.1QPort-channelCAN/LANNexusCatalystASAISRVMwareNutanixLiveActionWindows ServerLinuxSecurity managementTelecommunications
InitiativeSelf-motivationProblem-solvingTeamworkCommunicationLeadershipAttention to detail

Required

CCNADoD IAT Level II

Preferred

CCNP EnterpriseCCIECISSP
Industry Government/Public Sector
Job Function Design and deliver CAN/LAN network solutions for government customers
Role Subtype Network Engineer
Tech Domains Cisco Networking, VMware, Nutanix, Windows Server, Linux, LiveAction
design engineer (network designer iii) governmentts/sci with polygraphdoD 8140 Information Assurance Technical (IAT) Level 2CAN/LANCiscoOSPFBGPVLANs802.1Qport-channelsTier IIICCNACCNP EnterpriseNexusCatalystASAISRXEVMwareNutanixLiveActionAWSAzuredesign engineernetwork designer iiiciscoospfbgpvlan802.1qccnaccnp enterprisenexus

DoD 8140 IAT Level 2 compliance missing, Lack of TS/SCI with poly clearance, Insufficient CAN/LAN design experience

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