Network Engineer - Level 3 (26-257)

Northrop Grumman

Actively hiring Posted this week
Colorado Springs, CO Posted 6 days ago $94,200$141,200 / year

At a glance

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TL;DR

As a Principal Network Engineer III at Northrop Grumman Space Systems in Colorado Springs, CO, you will join a team dedicated to supporting critical missile defense operations by ensuring reliable network infrastructure across LAN/WAN environments. Your daily tasks include configuring and maintaining network devices from vendors like Cisco and Juniper Networks, monitoring performance, implementing core networking technologies, and troubleshooting issues independently or collaboratively with cross-functional teams. You must possess strong hands-on experience in network design, routing protocols (OSPF, BGP), firewall management, and traffic analysis, along with relevant certifications such as CCNA or JNCIA. Ideal candidates will have a STEM background and experience with multi-vendor switching and routing, optical transport equipment, and DOD security practices like STIG compliance. This role demands flexibility for travel to remote sites and support outside standard business hours.

Skills

Cisco Juniper Networks OSI Model TCP/IP BGP OSPF VLANs GRE tunnels UDP multicast SONET MSPP WAN optimizers TACLANEs optical transport equipment Security+ GSEC SCNP SSCP CISSP CISA GSE SCNA Ansible STIG compliance Microsoft Office PowerPoint Visio

What you'll do

  • Configure and maintain network devices like routers, switches, and firewalls from Cisco and Juniper Networks.
  • Monitor network performance and availability, resolving connectivity issues proactively.
  • Implement core networking technologies such as VLANs, OSPF, BGP, and basic security controls.
  • Troubleshoot network incidents across LAN/WAN environments, conducting root cause analysis.
  • Travel to remote locations for network installations, troubleshooting, and provide status updates.

What we're looking for

  • Bachelor’s Degree in STEM field with 5+ years of experience or equivalent work experience; IAT Level II certification required.
  • Proven network engineering skills with hands-on experience in LAN/WAN environments and multi-vendor switching/routing.
  • Expertise in TCP/IP, routing protocols (OSPF, BGP), VLANs, GRE tunnels, and firewall configurations.
  • Strong troubleshooting abilities for network incidents, including root cause analysis and resolution documentation.
  • Effective communication and presentation skills with proficiency in Microsoft Office products.

Employer

About Northrop Grumman

Northrop Grumman is a leading global aerospace and defense technology company providing systems in autonomous systems, cyber, C4ISR, space, strike, and logistics. Industry: Aerospace & Defense

Northrop Grumman currently has 191 open roles on FindRole.

Listed pay typically runs $117,500–$179,400 across 187 roles with salary data.

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