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Northrop Grumman

Principal Systems Engineer - Model-Based Systems Engineer (MBSE)

San Antonio, TX, United States

Primary Level Salary Range: $113,900.00 - $170,900.00

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Job details

Pay: Primary Level Salary Range: $113,900.00 - $170,900.00
Posting language: English
Posted: Oct 1, 2026

Original job description

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: Yes, 25% 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.

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 by providing the skills and 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!

Northrop Grumman Mission Systems has an opening for a systems engineer in the Cyber specialty discipline. We are seeking a highly skilled and motivated Principal Systems Engineer to join our dynamic engineering team. This role involves serving as a Model-Based Systems Engineer (MBSE) on a team dedicated to the development of a new solution operating in a multi-level security environment. The position requires expertise in Systems Engineering with an emphasis in MBSE and Cybersecurity.

The qualified applicant will become part of Northrop Grumman’s Mission Systems support team in San Antonio, TX .

Please be aware that this position will be contingent upon holding final clearances prior to start date. *

Cyber Systems Engineering Technical Support to Program:

Work within the Systems Engineering Group to provide technical decisions and guidance to enable timely, high quality product deliveries and flight test events that meet mission Cyber requirements
Partner and collaborate with other program systems engineers across Integrated Product Teams to accomplish program cyber requirements and meet mission objectives
As a member of a team of specialized NGMS cyber systems engineers, support the development and enhancement of Launch and Missile Defense systems
Participate as part of an extended team of US government, Northrop Grumman Mission Systems, Northrop Grumman Defense Systems, and suppliers of cybersecurity practitioners across multiple program locations
Ensure weapon system compliance with all contractually obligated cybersecurity standards and guidance, including but not limited to CNSSI 1253, DoD 8570, DoD 8510, and AFI 17-101
Propose and design cyber systems architecture changes with traceability to requirements
Provide cyber implementation guidance and oversight across technical teams
Develop and document technical standard engineering processes and procedures as needed
Participate in engineering reviews of technical requirements, design and implementation plans prior to development of computer systems, digital communications systems, networking devices, computer architectures
Perform cyber-attack surface analysis of system designs with recommendations to mitigate and reduce risk
Participate in cybersecurity assessment activities and review cybersecurity assessment methods, plans, procedures, reports and security penetration test planning and execution.
Provide input to program milestones and metrics, adhering to cybersecurity-relevant plans and schedules
Identify problems and research technical solutions to resolve these problems
Apply analytical and evaluative methods and techniques to issues or studies concerning the efficiency and effectiveness of Cyber Security implementation
Solve complex problems across disciplines in an Agile, DevSecOps environment
Support program engineering review boards

Basic Qualifications for Principal Cyber Systems Engineer

Bachelor’s degree with 5 years, Master’s degree with 3 years, or a PhD with 1 year of experience in Systems Engineering, Cybersecurity Engineering, Computer Engineering, Computer Science, or a related STEM discipline; or 9 years’ experience in cyber systems engineering, systems engineering, or model-based systems engineering related fields in lieu of a degree.
U.S. Citizenship is required.
A current active Secret clearance is required to be considered.
Ability to obtain and maintain a Top-Secret clearance.
Ability to obtain, within six months of hire, an IASAE II certification (CISSP preferred) in accordance with DoDI 8570/8140.
Demonstrated understanding and application of systems engineering principles, theories, and concepts across the system development lifecycle.
Hands-on experience using MBSE methods and SysML to build, modify, and maintain system models and related requirements artifacts.
Experience using Cameo/MagicDraw or equivalent MBSE tools to directly create and maintain model content such as requirements, structure, behavior, interfaces, and traceability; candidates whose experience is limited to model review, comment resolution, or coordination of models developed by others will not be considered sufficiently qualified.
Experience developing and managing requirements and systems engineering artifacts using tools such as DOORS, Cameo, Jira, or equivalent.
Direct experience in one or more systems engineering activities, including system requirements decomposition, derivation, flow-down, allocation, and traceability; architecture development; high-level or detailed design; implementation; integration; verification; or validation.
Experience operating across systems engineering and cybersecurity/information assurance considerations in support of system development.

Preferred Qualifications for Principal Cyber Systems Engineer

Demonstrated experience developing system architectures for complex aerospace vehicles or subsystems using MBSE (SysML).
OMG SysML Model User Certification.
IASAE Level III certified (ISSEP, ISSAP) in accordance with DoDI 8570/8140.
Top Secret/SCI Security Clearance with additional preference for SAP briefing on the Sentinel program.
Direct experience supporting the development of RMF assessment authorization artifacts to satisfy NIST SP 800-37 requirements.
Knowledge of cybersecurity systems engineering practices, network technologies, DoD system development life cycles and methodologies, and insight into information technology infrastructure management/monitoring and applications.
Experience innovating in cybersecurity accreditation processes and procedures in a multi-certification (Cyber, Nuclear Surety, etc.) context as part of a Digital Engineering Environment.
Experience in a Systems Engineering role with responsibilities in the planning, design, implementation, testing, and delivery of a system with Cyber/Information Assurance requirements.
Experience managing or supporting efforts executed within an Agile and DevSecOps process model.
Ability to calmly negotiate challenging program requirements, strategies, and conflicting constraints among a large and diverse group of program stakeholders.
Experience integrating cybersecurity requirements, security constraints, or information assurance considerations into system architecture, design, or MBSE products.

Primary Level Salary Range: $113,900.00 - $170,900.00

The 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.

Job Category: Information Technology

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Skills

Cybersecurity
Technical support
Microsoft Teams
Regulatory compliance
Engineering processes
Research
Computer engineering
Computer science
CISSP
Engineering principles
Jira
SAP
Computer technology

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