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Sr. Principal Network Engineer - Level 4

Job in Aurora, Arapahoe County, Colorado, 80012, USA
Listing for: Northrop Grumman
Full Time position
Listed on 2026-10-25
Job specializations:
  • Engineering
    Systems Engineer, Cybersecurity
  • IT/Tech
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 129300 - 193900 USD Yearly USD 129300.00 193900.00 YEAR
Job Description & How to Apply Below

RELOCATION ASSISTANCE:
Relocation assistance may be available

CLEARANCE REQUIRED FOR START:
Yes

CLEARANCE TYPE:
Polygraph

TRAVEL:
Yes, 10% of the Time

Description

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation's history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon.

We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work — and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they're making history.

Northrop Grumman’s Space Sector is seeking a Network Engineer – Level 4 to join our team in Aurora, CO. This position is 100% onsite and cannot accommodate telecommute work.

* This position is contingent upon capturing program award(s), obtaining and maintaining customer funding, and holding final clearances (if applicable) prior to start date*

The Network Engineer will support the customer’s computer data communications systems, in providing design specifications, testing and inspections for computer networks; plan and implementing upgrades; as well as, analyzing and organizing corresponding hardware and software combined solutions through network modeling.

Job responsibilities include, but are not limited to, the following:
  • Provide technical support and engineering for WAN/LAN development and maintenance.
  • The work involves installations, design, configurations, monitoring, and maintenance of network hardware and software to ensure network availability to system users.
  • Work alongside other network support and client server specialists to plan, coordinate, and implement network security measures.
  • Provide support to projects involving networks, by helping them connect to the network and troubleshooting issues they may have.
  • Develop and implement methodologies for analysis, installation and support of the network.
  • Other duties as assigned

This position is contingent upon the candidate obtaining final clearances and program access(es) within a reasonable period of time as determined by the company.

Basic Qualifications for Level 4:

  • Bachelor’s degree with 8 years of professional relevant experience – OR – Master’s degree with 6 years of professional relevant experience – OR – PhD with 3 year of professional relevant experience. Will consider an additional 4+ years of experience in lieu of degree.
  • Requires an active Top-Secret/Sensitive Compartmented Information (SCI) clearance with an active Counterintelligence (CI) Polygraph at time of application
  • Active/current CompTIA Security+ certification or equivalent 8570 certification
  • Network Engineering experience covering Switching, Routing, Firewalls, Cabling, and Hardware configuration/installation with CISCO and/or Juniper equipment
Preferred Qualifications:
  • At least 6 years of Network Engineering experience covering Switching, Routing, Firewalls, Cabling, and Hardware configuration/installation with CISCO and/or Juniper equipment demonstrating a strong proficiency
  • Experience working with worldwide enterprise networks
  • Experience working with classified level enterprise networks
  • Ability to effectively communicate and present to program management and customers
  • Ability to effectively write technical documentation
  • Experience sharing knowledge, mentoring, and working in a collaborative environment
  • Strong analytical, problem-solving,…
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