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Sentinel - Sr. Principal Systems Engineer - 17151* Security Clearance

Job in Bellevue, Sarpy County, Nebraska, 68005, USA
Listing for: Northrop Grumman
Full Time position
Listed on 2025-12-12
Job specializations:
  • Engineering
    Systems Engineer, Cybersecurity
Job Description & How to Apply Below
Position: Sentinel - Sr. Principal Systems Engineer - 17151* with Security Clearance
RELOCATION ASSISTANCE:
Relocation assistance may be available CLEARANCE TYPE:
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.

Join Northrop Grumman on our continued mission to push the boundaries of possible across land, sea, air, space, and cyberspace. Enjoy a culture where your voice is valued and start contributing to our team of passionate professionals providing real-life solutions to our world's biggest challenges. We take pride in creating purposeful work and allowing our employees to grow and achieve their goals every day by Defining Possible.

With our competitive pay and comprehensive benefits, we have the right opportunities to fit your life and launch your career today. Northrop Grumman Defense Systems currently has an opening for a Sr. Principal Systems Engineer. This position may be in Roy, UT, Colorado Springs, CO, Bellevue, NE or Huntsville, AL and will support the Sentinel program. Northrop Grumman supports the Air Force's sustainment, development, production and deployment of hardware and system modifications for Intercontinental Ballistic Missile (ICBM) Ground and Airborne Launch Control Systems, Launch Facilities and associated infrastructure.

What you will get to do:
The selected Sr. Principal (Level
4) Systems Engineer will be supporting activities including use case development, requirements definition / allocation, functional decomposition, interface definition, verification & validation, and requirements traceability. Specific duties to include, but are not limited to the following:
* Collaborate with program IPT counterparts to develop supporting systems engineering and design artifacts.

* Work with both technical teams and stakeholders to develop and mature architecture content of large programs design.

* Help develop and incorporate the appropriate requirements for the system and ensure that they are properly represented in the model.

* Develop systems architecture using Cameo Enterprise Architecture (behavioral, structural, analytical).

* Contribute to system requirements development, management, and analysis.

* Develop unifying model techniques, procedures, and processes (for model development, tool integration, and team integration). As a full-time employee of Northrop Grumman Space Systems, you are eligible for our robust benefits package including:
* Medical, Dental & Vision coverage

* 401k

* Educational Assistance

* Life Insurance

* Employee Assistance Programs & Work/Life Solutions

* Paid Time Off

* Health & Wellness Resources

* Employee Discounts This position's standard work schedule is 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off. This role may offer a competitive relocation assistance package. #Sentinel Systems Basic Qualifications :
* Sr. Principal Systems Engineer:
Bachelor's degree in Science, Technology, Engineering or Math (STEM) with 8 years of experience; 6 years of experience with a Masters' degree; or 4 years of experience with a PhD
* Must be a US Citizen with an active DoD Secret Clearance with an investigation date within the last 6 years.

* Must be able to be successfully screened for Enhanced Security Clearances, within a reasonable amount of time as determined by the company to meet its business needs

* 2+ years of experience with requirements management/analysis/allocations
* 2+ years of experience with Model-Based Engineering / Model-Based Systems Engineering (MBE/MBSE) practices, languages and/or tools such as Cameo, Rhapsody or MagicDRAW
* 2+ years of experience with one or more of the following:
Command & Control (C2), physical security, cybersecurity, Nuclear Command, Control, and Communications (NC3) systems/processes, communications systems, facility design, military aerospace development (e.g. Sentinel, Minute Man III, B-2, B-21 delivery systems)

Preferred Qualifications:

* 1+ years of experience developing or reviewing requirements within DOORS or similar tool

* 1+ year experience in ICBM (MMIII or Sentinel) OR complex aerospace/defense systems

* 1+ year experience in team environments with leadership responsibilities

* 1+ year experience creating, updating, and maintaining system performance documentation

*…
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