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Sr. Principal Network Field Engineer

Requisition ID: R10044991

  • Category IconCategory: Engineering
  • Location IconLocation: London, London, United Kingdom
  • Citizenship IconCitizenship Required: United States Citizenship
  • Clearance IconClearance Type: Secret
  • Telecommute IconTelecommute: No- Teleworking not available for this position
  • Shift IconShift: Any (United States of America)
  • Travel IconTravel Required: Yes, 75% of the Time
  • Positions IconPositions Available: 1

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 Mission Systems is a trusted provider of mission-enabling solutions for global security.  Our Engineering and Sciences (E&S) organization pushes the boundaries of innovation, redefines engineering capabilities, and drives advances in various sciences. Our team is chartered with providing the skills, innovative technologies to develop, design, produce and sustain optimized product lines across the sector while providing a decisive advantage to the warfighter.  Come be a part of our mission!

We are looking for you to join our team as a Sr. Principal Network Field Engineer.

What You’ll get to Do:

Have an opportunity to travel to sustained operational locations overseas and develop your technical expertise across the engineering spectrum. Be part of our field engineering team that operates and maintains complex tactical communication systems worldwide. This is an exciting and dynamic opportunity for Linux and Network Engineers to stay current with their certifications while expanding their skills outside traditional roles to include Linux, voice services, cyber security and a variety of military data links. You'll also get to:

  • Support operations and maintenance of a complex airborne and terrestrial tactical communication system providing voice and data services in real world operations.
  • Be primarily responsible ISSO duties -  manage, maintain, troubleshoot and administer the airborne and terrestrial networking and Linux components of a communication system. 
  • Administer  equipment and environments which include Linux servers/clients, network attached storage devices, virtual machines, routers, switches, firewalls, and taclanes. 
  • Other fundamental duties include basic Linux system administration, account management, data collection, syslog review and maintaining the systems cyber security posture. 
  • Tertiary duties include maintaining and troubleshooting voice services including Asterisk call managers and Cisco Unified Border Element (CUBE). 
  • Use engineering drawings for troubleshooting and use standard desktop computer and Windows based tools to produce or edit documents including drawings, plans, procedures and reports.
  • Assist and develop proficiency with performance of other engineering and operational duties as required in support of the 24/7 deployed operational network.
  • Work closely with an Active Duty/Government customer as well as internal Northrop Grumman Integrated Product Teams (IPTs).
  • Prepare to learn and excel on a small multidisciplinary team responsible for troubleshooting a wide array of military voice and data services.
  • Relay and receive information efficiently, work extended hours to meet deadlines, maneuver around equipment in test labs and aircraft

Extended travel up to 75% to hazardous overseas duty locations

Basic Qualifications for a Sr. Principal Network Field Engineer :

  • Bachelor's Degree and 9 years experience. An additional 4 years of experience in repair, configuration, troubleshooting and operations of network devices and computer systems may be considered in lieu of a degree.
  • Active Secret security (or above) clearance with the investigation completed within the last 4 years
  • Experience administering Linux and Cisco client/server systems, managing IP based networks, and ability to solve difficult technical problems focused on the delivery of voice and data services over wireless IP networks
  • DOD 8570 IAT Level II or greater certification (Security +) and CISCO or Linux certification
  • Must pass a physical health assessment and meet the minimal standards of fitness in alignment with AFCENT requirements
  • Must be willing and able to travel up to 75% (some travel to hazardous deployment areas) and multi-month overseas deployments

Preferred Qualifications:

  • Combination of in-depth Cisco based IP networks, system administration experience with Linux, VMware and Windows 2008 Server and Windows 7 Professional
  • General experience with; general computing and a working knowledge of military COMSEC, MIDS, SADL and communications radio hardware
  • Experience working on and around aircraft and understanding of airborne equipment installation operation, maintenance and testing procedures and processes is highly desirable
  • Working knowledge of EIGRP, BGP, 802.1Q, 802.1X, DMVPN, NTP, SNTP and VLANs
  • Experience with High Assurance IP Encryptor’s (HAIPEs), KG-210’s, KG-175’s, Red Hat Linux (RHEL), Red Hat Directory Server and VMware ESXi is a plus


Salary Range: $61,900 USD - $92,900 USD
Salary Range 2: $76,200 USD - $114,400 USD

The health and safety of our employees and their families is a top priority. The company encourages employees to remain up-to-date on their COVID-19 vaccinations. U.S. Northrop Grumman employees may be required, in the future, to be vaccinated or have an approved disability/medical or religious accommodation, pursuant to future court decisions and/or government action on the currently stayed federal contractor vaccine mandate under Executive Order 14042 https://www.saferfederalworkforce.gov/contractors/.

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action 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/AA and Pay Transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for most positions.



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What's great about
Northrop Grumman

  1. Be part of a culture that thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work.
  2. Use your skills to build and deliver innovative tech solutions that protect the world and shape a better future.
  3. Enjoy benefits like work-life balance, education assistance and paid time off.


Did you know?

Northrop Grumman leads the industry team for NASA’s James Webb Space Telescope, the largest, most complex and powerful space telescope ever built. Launched in December 2021, the telescope incorporates innovative design, advanced technology, and groundbreaking engineering, and will fundamentally alter our understanding of the universe.