✦ Luna Orbit — Networking & Telecom

Network Engineer (Level 2 OR 3)

at Northrop Grumman

📍 United States-Colorado-Aurora Onsite 💰 $83K – $125K USD / year Posted March 30, 2026
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Position Details

Salary $83K – $125K USD / year
Type Full-Time
Experience mid
Exp. Years Level 2: 2+ years; Level 3: 5+ years
Education Level 2: Bachelor's degree in STEM with 2+ years relevant experience, or Master's with 0 years; Level 3: Bachelor's degree in STEM with 5+ years relevant experience, or Master's with 3+ years
Category Networking & Telecom

About this role

Network Engineer (Level 2 or 3) supporting Northrop Grumman Space Systems in Aurora, CO, responsible for designing and planning network architectures, troubleshooting LAN/WAN issues, and selecting hardware/software, with Security+ and TS/SCI clearance requirements.

Key Responsibilities

  • Design and plan network communication systems
  • Troubleshoot network faults
  • Provide detailed specs for hardware and software selections
  • Maintain expertise in network interconnections and COMSEC equipment
  • Travel up to 30%

Technical Overview

Focus on large-scale network design and interconnection of routers, switches, firewalls, and load balancers; requires Cisco hardware/software knowledge, Linux/Windows experience, and COMSEC awareness; polygraph clearance.

Ideal Candidate

A mid-level network engineer with an active TS/SCI clearance and polygraph, Security+ certification, and deep experience with Cisco routers/switches, firewalls, load balancers, and large LAN/WAN networks. Must be willing to work onsite in Aurora, CO with travel up to 30%.

Must-Have Skills

Active TS/SCI with adjudicated full-scope polygraphSecurity+ certifiedCISCO RouterSwitches hardware and software knowledgeBachelor's degree in STEM with 2+ years of relevant experience

Nice-to-Have Skills

Firewall hardware and software knowledgeadministrationmanagement and modificationsExperience with designing additions to a large networkCOMSEC equipment knowledge

Required Skills

Security+TS/SCIadjudicated full-scope polygraphCisco RouterCisco SwitchesFirewallLoad BalancersCOMSEC equipment knowledgeLAN/WANLinuxWindowsnetwork designtroubleshooting

Hard Skills

Security+CISCO RouterCisco SwitchesLoad BalancersFirewallsCOMSEC equipment knowledgeLAN/WANLinuxWindowsTroubleshootingNetwork designRouterSwitchesadjudicated full-scope polygraphTS/SCI

Soft Skills

problem-solvingattention to detailteam collaborationcommunication skillsindependent work

Certifications

Required

Security+

Industry & Role

Industry Defense
Job Function Design, implement, and maintain secure network infrastructure for defense/space systems
Role Subtype Network Engineer
Tech Domains Cisco Networking, Linux, Windows Server

Keywords for Your Resume

Network EngineerLevel 2Level 3Security+TS/SCIadjudicated full-scope polygraphCISCO RouterCisco SwitchesFirewallLoad BalancerCOMSEC equipmentLinuxWindowsLAN/WANnetwork designtroubleshootinglarge networkadjudicated polygraphtravel up to 30%polygraphCisco Router

Deal Breakers

No TS/SCI with polygraph, No Security+ certification, No Cisco Router/Switches knowledge, unwilling to travel or relocate

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