Principal Network Engineer

Northrop Grumman

Confirmed live yesterday High trust

Quick summary

Work type
On-site
Location
Redondo Beach, CA
Salary
$103,600–$155,400 / yr
Posted
100 days ago
Freshness
Confirmed live yesterday

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $182k
This role $130k
$88k most similar roles pay here $250k

This role pays less than 92% of similar roles. Most pay $155,900–$208,800 — the shaded band above. At the midpoint, this role pays about $130k versus about $182k for comparable roles.

Based on 240 similar postings.

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 367 open roles on FindRole.

Listed pay typically runs $114,900–$176,300 across 353 roles with salary data.

Most-posted roles

View all roles at Northrop Grumman

At a glance

TL;DR · Principal Network Engineer

The Principal Network Engineer joins the Network Communications and Visibility team within the IT Infrastructure and Operations organization. This role focuses on designing, implementing, and maintaining high-availability network infrastructure for a local campus and multiple remote sites across an enterprise-wide footprint. The engineer will manage site and enterprise level solutions, coordinate cabling projects, perform Tier 2/3 troubleshooting for WAN, LAN, and SD-WAN environments, and serve as the primary technical liaison with vendors like Cisco, Aruba, and Juniper. Key responsibilities include installing core network equipment, managing firewalls, and enforcing security policies aligned with NIST guidelines. The role requires expertise in TCP/IP protocols, multicast, QoS, CoS, OSPF, and cellular technology. Candidates must possess experience with Cisco routers, switches, wireless systems, and Palo Alto firewalls to ensure a secure communications environment for the organization's infrastructure.

What does a Network Engineer earn?

Median $147000 from 81 postings across 20 companies.

See salary data

What you'll do

  • Design, implement, and maintain high-availability network infrastructure for site and enterprise-level solutions.
  • Produce comprehensive design review packages including schematics, bill-of-materials, and implementation schedules.
  • Install and commission Cisco core network equipment including routers, switches, firewalls, and wireless systems.
  • Coordinate fiber-optic and copper cabling projects with suppliers and internal construction teams.
  • Provide Tier 2/3 troubleshooting for WAN, LAN, and SD-WAN environments to ensure high service availability.
  • Execute hardware replacements, software upgrades, and maintain accurate documentation in the configuration management database.
  • Serve as the primary technical liaison with vendors for escalations and new service onboarding.
  • Implement security policies for network segmentation and access control in compliance with NIST guidelines.

What we're looking for

  • Must possess an Associate's degree with 7 years experience, Bachelor's with 5 years, Master's with 3 years, or PhD with 1 year.
  • A High School Diploma with 9 years of relevant experience may be considered in lieu of a degree.
  • Must have a current U.S. Government Secret level security clearance (or higher) with a recent investigation or CE enrollment.
  • U.S. Citizenship is required for this position.
  • Experience with managed network solutions and large-scale technical network engineering projects is required.
  • Proficiency with Cisco routers, switches, firewalls, wireless technology, and cellular technology is required.
  • Strong knowledge of TCP/IP protocols, LAN/WAN technologies (multicast, QoS, CoS, OSPF), and Cisco products is required.
  • Experience with SD-WAN methodologies, Palo Alto Firewalls, or Project Management certification is preferred.

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