Sr Principal Network Engineer

Company: Northrop Grumman
Location: Aurora
Posted on: April 1, 2026

Job Description:

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Polygraph TRAVEL: Yes, 25% 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 (NGSP) seeks to fill a Senior Principal Network Engineer in the Payload and Ground Systems Division Engineering organization supporting Integrated National Systems (INS) Business Unit (BU). This position is located 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. Travel is required at a minimum of 20%. 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. Active TS/SCI with an adjudicated full-scope polygraph at time of application. 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 Primary Level Salary Range: $124,900.00 - $187,300.00 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.

Keywords: Northrop Grumman, Southglenn , Sr Principal Network Engineer, IT / Software / Systems , Aurora, Colorado