✦ Luna Orbit — Networking & Telecom

Implementation Engineer (Network Engineer II) (Government)

at AT&T

📍 Chantilly, Virginia Onsite 💰 $89K – $194K USD / year Posted March 31, 2026
Salary $89K – $194K USD / year
Type Full-Time
Experience mid
Exp. Years 10+ years
Education Not specified
Category Networking & Telecom

AT&T seeks a Network Implementation Engineer to design, implement and document secure, DISA-aligned network solutions for government customers, including multi-vendor hardware and enterprise routing/switching protocols, with TS/SCI clearance.

  • Lead network design and documentation
  • Manage incident/escalation at enterprise level
  • Coordinate with operations for fault isolation
  • Develop design products/processes
  • Ensure STIG/compliance and ATO adherence

Involves OSPF/BGP routing, VLANs/802.1q, trunking, multi-vendor equipment (Cisco/Brocade/Juniper), DISA STIGs, ATO processes, and DoD 8140 IAT Level 2.

The ideal candidate is a mid-level network engineer with 10+ years of hands-on experience in secure network engineering for government/military environments, including OSPF/BGP, VLANs and multi-vendor hardware. They should possess DoD 8140 IAT Level 2 and TS/SCI with polygraph clearance, with a proven ability to document designs and obtain ATO for new devices.

DoD 8140 Information Assurance Technical (IAT) Level 2Experience specific to network engineering including Tier III or higher network operations and/or network design and implementationPrior responsibility for production network hardware configurations for CiscoBrocadeand/or JuniperHands-on experience implementing and troubleshooting standard routing protocols in a production networksuch as Open Shortest Path First (OSPF) or Border Gateway Protocol (BGP)Hands-on experience implementing and troubleshooting standard switching and trunking protocols in a production networksuch as Virtual Local Area Networks (VLANs)802.1qand port-channels
CAN/LAN network engineering and designMPLS WANsnetwork management toolsfirewallsCisco Certified Network Professional (CCNP) or Juniper Networks Certified Internet Professional - Enterprise Routing and Switching (JNCIP-ENT)
CiscoBrocadeJuniperDISA STIGs
10+ years in network technology and/or cloud/network design; DoD 8140 IAT Level 2; experience with Cisco/Brocade/Juniper; OSPF/BGP; VLANs; 802.1q; port-channels; TS/SCI with polygraph; ATO; STIGs; secure network design
OSPFOpen Shortest Path FirstBGPBorder Gateway ProtocolVLANs802.1qPort-channelsCiscoBrocadeJuniperSTIGsSecurity Technical Implementation GuidesATOAuthority to OperateDISADefense Information Security AgencyDoD 8140IAT Level 2DoD 8140 Information Assurance Technical (IAT) Level 2TS/SCI with polygraphNetwork designNetwork operations
communicationleadershipdocumentationproblem-solvingteamworktime managementanalytical thinkingadaptabilityattention to detail

Required

DoD 8140 Information Assurance Technical (IAT) Level 2

Preferred

Cisco Certified Network Professional (CCNP)Juniper Networks Certified Internet Professional - Enterprise Routing and Switching (JNCIP-ENT)
Industry Government/Public Sector
Job Function Implement and secure government network infrastructure across multiple enterprise segments
Role Subtype Director of IT
Tech Domains Cisco Networking, Networking / TCP-IP, Software-Defined Networking
network implementation engineernetwork engineer iits/sci with polygraphiAT level 2doD 8140ospfbgpvlan802.1qport-channelsciscobrocadejuniperatoDISA STIGsCAN/LANMPLS WANsnetwork designnetwork operationsNetwork Implementation EngineerNetwork Engineer IITS/SCI with polygraphIAT Level 2DoD 8140OSPFBGPVLANsCisco

TS/SCI with polygraph is not present, Lack of DoD 8140 IAT Level 2 certification, unwillingness to work onsite in Chantilly, VA

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