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Northrop Grumman

Principal / Sr. Principal Systems Engineer – GN&C

Northrop Grumman

. Support the Guidance, Navigation, and Control subsystem as part of the GN&C department and program integrated product teams .

Posted 10/26/2026full-timeUnited StatesSenior💰 $98,400 - $184,200 per yearWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in systems engineering lifecycle, including requirements development, management, and verification. Proficient in using tools like DOORS and Cameo for documentation and integration in aerospace development projects.

Highest-signal resume keywords
Systems Engineering Lifecycle ExperienceRequirements Management Tools (DOORS)Technical Presentation SkillsActive DoD Secret ClearanceGN&C Experience

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Requirements DevelopmentRequirements ManagementVerification and Validation PlanningMechanical/Electrical Design IntegrationConfiguration ManagementInterface Control DocumentsInterface Requirement SpecificationsInterface Description DocumentsCritical Design Review PlanningComplex System Development
Soft Skills
Communication SkillsLeadership ExperienceCollaboration with Customers
Tools & Technologies
Cameo Enterprise ArchitectureMagicDrawAtlassian Tools (Jira, Confluence)
Certifications & Qualifications
Active DoD Secret ClearanceSpecial Access Program (SAP) Approval
Industry Keywords
Guidance, Navigation, and Control (GN&C)Aerospace DevelopmentSystems Engineering V-ModelDoD Development EnvironmentICBM Weapon System Sustainment Engineering

About the role

Key responsibilities & impact
  • Support the Guidance, Navigation, and Control subsystem as part of the GN&C department and program integrated product teams
  • Provide systems engineering support to ensure sound engineering procedures and products
  • Develop requirements, interfaces, architecture, and mechanical/electrical design integration artifacts
  • Build systems engineering artifacts for GN&C System First Flight Design Review, Critical Design Review, Functional Configuration Audit, and System Qualification/Verification Review
  • Coordinate with higher-level systems engineers and design engineering to produce required documentation
  • Set baseline system documentation in Cameo and DOORS
  • Push artifacts through engineering approval and configuration management
  • Communicate with customers and subcontractors to align requirements with contract constraints and subcontract requirements
  • Report to the GN&C Systems Engineering Lead

Requirements

What you’ll need
  • Must be a US Citizen
  • Active DoD Secret Clearance at time of application, current and within scope, with an investigation date within the last 6 years
  • Current or ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period
  • Experience across the systems engineering lifecycle, including requirements development and decomposition, requirements management and traceability, and verification and validation planning and execution
  • Experience with requirements management tools such as DOORS or similar
  • Experience preparing and delivering technical presentations to customers or leadership
  • Principal Systems Engineer (T03): Bachelor's degree in a STEM discipline from an accredited university and 5 years of experience with a bachelor's degree, 3 years with a master's degree, or 1 year with a PhD
  • Principal Systems Engineer (T04): Bachelor's degree in a STEM discipline from an accredited university and 8 years of experience with a bachelor's degree, 6 years with a master's degree, or 4 years with a PhD
  • Preferred: experience with GN&C, electrical engineering, software development, or hardware-software interfaces
  • Preferred: understanding of Engineering Board Processes
  • Preferred: experience leading projects/assignments
  • Preferred: Atlassian tools such as Jira and Confluence or similar
  • Preferred: Critical Design Review planning and/or execution
  • Preferred: supplier/subcontractor experience, including reviewing SOWs and contractual documents
  • Preferred: reviewing specifications, requirements, and interface documents
  • Preferred: Systems Engineering V-Model knowledge
  • Preferred: aerospace development experience
  • Preferred: systems product development experience
  • Preferred: Cameo Enterprise Architecture, MagicDraw, or other architecture modeling tools
  • Preferred: documenting Interface Control Documents, Interface Requirement Specifications, and Interface Description Documents
  • Preferred: DoD development environment experience
  • Preferred: ICBM weapon system sustainment engineering and integration experience
  • Preferred: complex system development on large programs
  • Preferred: active DoD Top Secret Clearance or ability to obtain
  • Preferred: active SAP Clearance or ability to obtain
  • Travel up to 10% of the time

Benefits

Comp & perks
  • Medical, Dental & Vision coverage
  • 401k
  • Educational Assistance
  • Life Insurance
  • Employee Assistance Programs & Work/Life Solutions
  • Paid Time Off
  • Health & Wellness Resources
  • Employee Discounts
  • 9/80 work schedule, allowing every other Friday off
  • Relocation assistance may be available
  • Competitive relocation assistance package may be offered
  • Possible overtime, shift differential, and discretionary bonus
  • Company paid holidays
  • Disability insurance
  • Savings plan