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Northrop Grumman Defense Systems is seeking a Principal Systems Engineer (level 3) /Sr. Principal Systems Engineer (level 4). This opening is in Roy, UT or Manhattan Beach, CA 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 Sentinel Hardware Design Integration Principal/Sr. Principal Systems Engineer will develop requirements, verification methods, model-based subsystem/assembly definitions, and assembly description documents (e.g. theory of operations) for a set of ground-based hardware assemblies. The successful candidate will work collaboratively with their IPT enabling the end-to-end development and validation of integrated assemblies. Hardware Design Integration Systems Engineers become product SMEs and assist the Hardware Design RE with technical guidance at the systems level and technical support at the product design level.
Specific duties include:
- Flow down and tailor requirements to specific integrated assemblies/groups
- Create meaningful verification methods for requirements and integrate those requirements with design and test plans.
- Develop and deliver highly tailored MBSE artifacts to hardware design and architecture teams (including feedback of design details that update/modify MBSE artifacts)
- Understand and implement best practices for DOORS and Cameo modeling.
- Maintain and improve systems engineering artifacts relevant to integrated assemblies and installations for accuracy and consistency
- Collaborate with cross-functional IPT and provide technical guidance regarding system design to the IPT.
This requisition may be filled at either the Principal Systems Engineer level (level 3) or Sr. Principal Systems Engineer level (level 4).
Basic Qualifications:
Principal Systems Engineer:
- Bachelor's degree in STEM and 5 years of experience, 3 years of experience with master’s degree, 0 years of experience with PhD.
- Must have an active U.S. Government DoD Secret security clearance at time of application, current and within scope, with an investigation date within the last 6 years
- Ability to obtain Special Access within a reasonable period as determined by the business needs of the company.
- 1-2 years of Model Based Systems Engineering (MBSE) and using MBSE to decompose and define system/product functionality
- 1-2 years of experience in evaluating/writing requirements, decomposing functionality.
- 1-2 years of experience implementing Systems Engineering processes and procedures to improve effectivity and efficiency of product design including modification of methods for using MBSE tools such as DOORS and Cameo
- 1-2 years of experience with DOORS and Cameo.
Sr. Principal Systems Engineer:
- Bachelor's degree in STEM and 8 years of experience, 6 years of experience with master’s degree, 4 years of experience with PhD.
- Must have an active U.S. Government DoD Secret security clearance at time of application, current and within scope, with an investigation date within the last 6 years
- Ability to obtain Special Access within a reasonable period as determined by the business needs of the company.
- 2-4 years of Model Based Systems Engineering (MBSE) and using MBSE to decompose and define system/product functionality
- 2-4 years of experience in evaluating/writing requirements, decomposing functionality.
- 2-4 years of experience implementing Systems Engineering processes and procedures to improve effectivity and efficiency of product design including modification of methods for using MBSE tools such as DOORS and Cameo
- 2-4 years of experience with DOORS and Cameo.
Skills Required
- Bachelor's degree in STEM with 5 years' experience (Principal) or 8 years' experience (Sr. Principal); master's or PhD experience equivalencies listed
- Active U.S. Government DoD Secret security clearance at time of application, current and within scope, with investigation date within the last 6 years
- U.S. Citizenship required for positions with government clearance
- Ability to obtain Special Access within a reasonable period
- Model Based Systems Engineering (MBSE) experience: 1-2 years (Principal) or 2-4 years (Sr. Principal)
- Experience evaluating/writing requirements and decomposing functionality: 1-2 years (Principal) or 2-4 years (Sr. Principal)
- Experience implementing systems engineering processes/procedures and modifying MBSE methods
- Experience using DOORS and Cameo: 1-2 years (Principal) or 2-4 years (Sr. Principal)
Northrop Grumman Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.
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Retirement Support — 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
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Leave & Time Off Breadth — PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
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Parental & Family Support — Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.
Northrop Grumman Insights
What We Do
We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.







