RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE TYPE: SecretTRAVEL: 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 is seeking a *Principal/Sr. Principal Systems Engineer *in support of the Sentinel program. This opening may be in either Huntsville, AL 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 program has an exciting opportunity for a Principal/Sr. Principal Systems Engineer to join the team 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).
  Basic Qualifications:

• Both Levels:* Must be a US Citizen with an active DoD Secret Clearance with an investigation date within the last 6 years and 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.
  Sr. Principal Systems Engineer: Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) with 8 years of experience; or master's degree with 6 years of experience; or PhD with 4 years of experience

• 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: C2, physical security, cybersecurity, communications systems, facility design, military aerospace development

• *Principal Systems Engineer: Bachelor's degree in Science, Technology, Engineering, or Mathematics (STEM) with 5 years of experience; or master's degree with 3 years of experience; or PhD with 1 year of experience.

• 1+ years of experience with requirements management/analysis/allocations

• 1+ years of experience with Model-Based Engineering / Model-Based Systems Engineering (MBE/MBSE) practices, languages and/or tools such as Cameo, Rhapsody or MagicDRAW

• 1+ years of experience with one or more of the following: C2, physical security, cybersecurity, communications systems, facility design, military aerospace development
  Preferred Qualifications:

• Active Do

D Top Secret Clearance:

• Understanding of the Systems Engineering V-Model
• Experience with requirements management tools such as DOORS
• Experience in SysML or UPDM modeling languages
• Proficiency with the DoDAF, UAF, or other modeling frameworks
• Experience modeling with Cameo Enterprise Architecture, Magic Draw (No Magic, Inc.) or other architecture modeling tools
• Experience using tools to model large systems with multiple developers
• Experience in Software and/or Hardware design
• Experience in documenting Interface Control Documents, Interface Requirement Specifications, and Interface Description Documents
• Experience in the military aerospace development environment
• Experience with weapon systems
• Experience exporting documentation out of a model-based environment
• Experience with Agile Development
• Experience with ICBM weapon system sustainment engineering and integration
• Experience with complex system development on large programs
  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 a 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off.
  #Sentinel Systems
  #HSVJune2025
  Primary Level Salary Range: $105,400.00 - $165,500.00Secondary Level Salary Range: $131,000.00 - $206,000.00The 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.