Northrop Grumman Aeronautics Systems is seeking a Principal Systems Engineer/Sr. Principal Systems Engineer to join our team of qualified, diverse individuals within our Systems Engineering organization. This role is located in Oklahoma City, OK
This position can be filled at a level 3 or a level 4.
This Principal Systems Engineer 3/4 position is for an individual contributor within a multi-disciplinary engineering team. Responsibilities include conducting research, writing requirements, developing models, defining interfaces and performing analysis while working within an Integrated Product Team (IPT) structure to drive the development of new program requirements, refine existing program requirements, and influence the pursuit of future technologies and capabilities. The selected candidate will collaborate across the engineering disciplines and technology areas to integrate and communicate technical capabilities and analyses with internal stakeholders and external customers across multiple simultaneous Modernization and Sustainment efforts.
Job Responsibilities:
• In this role, you will be responsible for Scrum Master duties, such as facilitating stand-ups, sprint planning, retrospectives, and improving Agile practices within the development lifecycle.
• Perform requirements development, allocation, verification/validation planning and manage interface definition efforts.
• Write complex specifications, interface control documents, and engineering reports.
• Support interface/communication with program, functional and subsystem leads.
• Maintain Systems Engineering artifacts following proper configuration management procedures.
• Coordinate with key stakeholders to ensure proper verification and validation of Systems Engineering artifacts
• Possess strong interpersonal and leadership skills with excellent communications skills to support coordination across IPTs and with external customers.
• Solicit input from various stakeholders and team members to synthesize data and communicate findings and recommendations clearly to both technical and non-technical audiences.
• Support cross-IPT development of system level requirements and use cases
• Work with Release Train Engineers to develop and execute scrum team plans and metrics
• Manage project execution rhythm, coordination, and reporting activities
• Utilize JIRA software tool (and/or similar) for issue tracking and resolution
We offer a 9/80 work schedule with every other Friday off, phenomenal learning opportunities, and a very friendly team environment. We are looking for self-motivated, proactive, and goal-oriented people to help us grow our services and become even better at what we do.
Basic Qualifications:
• Principal Systems Engineer 3 - Bachelor’s degree in a STEM discipline AND 5 years of related professional/military experience in Systems Engineering, OR a Master’s degree in a STEM discipline AND 3 Years of related professional/military experience in Systems Engineering, OR a PhD in a STEM discipline AND in a STEM discipline AND 1 Year of related professional/military experience in Systems Engineering
• Ability to obtain and maintain DoD Secret clearance
• Ability to obtain and maintain Special Access Program (SAP) clearance
• Experience in at least one aspect of aerospace Systems Engineering, including requirements decomposition, test planning, requirements verification, integration, and requirements management
• Experience with Scrum Team execution and/or Agile execution
• Sr. Principal Systems Engineer 4 - Bachelor’s degree in a STEM discipline AND 8 years of related professional/military experience in Systems Engineering, OR a Master’s degree in a STEM discipline AND 6 Years of related professional/military experience in Systems Engineering, OR a PhD in a STEM discipline AND in a STEM discipline AND 4 Year of related professional/military experience in Systems Engineering
• Ability to obtain and maintain DoD Secret clearance
• Ability to obtain and maintain Special Access Program (SAP) clearance
• Experience in at least one aspect of aerospace Systems Engineering, including requirements decomposition, test planning, requirements verification, integration, and requirements management
• Experience with Scrum Team execution and/or Agile execution
Preferred Qualifications:
• Scrum Master Certification
• Experience with Atlassian Tools & Python or other scripting language
• Experience with requirement decomposition and traceability from System to Unit/Supplier Specifications
• Experience with software development
• Experience with HW/SW integration testing
• Experience with managing suppliers with technical requirements and verification expectations
• Experience with DOORS DXL and DOORS administration
• Experience with Cameo
• Experience with Model-Based Systems Engineering (MBSE)
• Experience with Continuous Integration/Continuous Deployment software development for Aircraft Sustainment efforts
• Experience with Project Management
• Active DoD Secret or higher clearance (with a background investigation completed within the last 6 years or currently enrolled into Continuous Evaluation
• Active SAP clearance
Skills Required
- Bachelor's degree in a STEM discipline and 5 years of related Systems Engineering experience for Principal Engineer level
- Master's degree in a STEM discipline and 3 years of related Systems Engineering experience for Principal Engineer level
- PhD in a STEM discipline and 1 year of related Systems Engineering experience for Principal Engineer level
- Bachelor's degree in a STEM discipline and 8 years of related Systems Engineering experience for Senior Principal Engineer level
- Master's degree in a STEM discipline and 6 years of related Systems Engineering experience for Senior Principal Engineer level
- PhD in a STEM discipline and 4 years of related Systems Engineering experience for Senior Principal Engineer level
- Ability to obtain and maintain DoD Secret clearance
- Ability to obtain and maintain Special Access Program (SAP) clearance
- Experience in aerospace Systems Engineering, including requirements decomposition, test planning, requirements verification, integration, or requirements management
- Experience with Scrum Team execution and/or Agile execution
- Scrum Master Certification
- Experience with Atlassian Tools and Python or another scripting language
- Experience with requirements decomposition and traceability from system to unit or supplier specifications
- Experience with software development
- Experience with hardware/software integration testing
- Experience managing suppliers with technical requirements and verification expectations
- Experience with DOORS DXL and DOORS administration
- Experience with Cameo
- Experience with Model-Based Systems Engineering (MBSE)
- Experience with Continuous Integration/Continuous Deployment software development for aircraft sustainment
- Experience with project management
- Active DoD Secret or higher clearance with recent background investigation or continuous evaluation
- Active SAP clearance
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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Healthcare Strength — Health coverage offers multiple medical plan options by region alongside dental, vision, mental‑health resources, and wellness programs. Recent materials also highlight added family‑building support, including a dedicated fertility benefit.
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Retirement Support — The 401(k) savings plan is positioned as competitive with a company match, auto‑escalation features, and access to an employee stock fund/ESPP. Official filings and benefits guides emphasize retirement as a core element of the Total Rewards package.
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Leave & Time Off Breadth — Many sites offer a 9/80 schedule, generous PTO, paid holidays, and flexible/telework options where program needs allow. Paid parental and caregiver leave are prominently featured, with recent enhancements for the delivering parent.
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.





