Sr Principal Network Engineer (AHT)
Northrop Grumman
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Aurora, CO · Posted October 16, 2026
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November 2026
- #3Best all-round cities for new graduates in the Mountain West61 / 100 · of 11
- #4Best cities for pay after cost of living in the Mountain West$139k · of 11
- #5Best all-round cities for AI careers in the Mountain West54 / 100 · of 11
- #6Best college towns for junior jobs in the Mountain West30% · of 14
- #6Best cities for software and engineering jobs in the Mountain West137 openings · of 22
- #7Best cities for junior jobs in the Mountain West29% · of 19
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
Among network and computer systems administrators, AI is already used for a large share of the tasks. Measured exposure for network and computer systems administrators: 34% (high).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret 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 Space Systems is seeking a Senior Principal Network Engineer for our team based in Aurora, CO. In this role, the successful candidate will design and plan network communication systems and provide specifications and detailed schematics for network architecture. The candidate must be able to troubleshoot and isolate network faults and failures in a LAN/WAN environment and provide specific detailed information for hardware and software selections, implementation techniques and tools for the most efficient solution to meet business needs, including present and future capacity requirements. This candidate will have to maintain technical expertise in all areas of network and software interconnections and interfacing, such as routers, switches, firewalls, load balancers etc., and evaluate and report on new communication technologies to enhance capabilities of the network. Candidates are required to be Security+ certified and have an adjudicated full-scope polygraph at time of employment. Candidates must have the ability to work within a group or independently where collaboration and attention to detail is critical to mission success. Basic Qualifications: Bachelor's degree in STEM with 8+ years of relevant experience, OR Master's degree with 6+ years, or PhD with 4+ years; 12+ years of experience may be considered in lieu of a degree requirement. United States Citizenship Must have an active U.S. Government Top Secret security clearance at time of application, current and within scope, with the ability to obtain and maintain SCI approval/access. Must have an active U.S. Government Full-Scope Polygraph at time of application, current and within scope. Candidates are required to be Security+ certified. Candidates are required to travel a minimum of 20%. The candidate will have to Maintain technical expertise in all areas of network and software interconnections and interfacing, such as routers, switches, firewalls, load balancers etc. Wide Area Network Subject Matter Expert Experience with designing additions to a large network Preferred Qualifications: Firewall Hardware and Software Knowledge, administration, management and modifications CISCO Router, Switches Hardware and Software Knowledge COMSEC equipment knowledge Maintain technical expertise in all areas of network and software interconnections and interfacing, such as routers, switches, firewalls, load balancers etc. Linux and Windows knowledge #LI-VC2 #SPEnhancedERAP Primary Level Salary Range: $129,300.00 - $193,900.00 The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. Northrop Grumman is an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.