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Northrop Grumman

Principal/Sr Principal Mechanical Systems Design Integrator - 19584*

United States-California-Manhattan Beach · United States-Utah-Roy

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hirly's read of this role

Seniority
Lead / management
Country
US
Work mode
On-site / unstated
First seen by hirly
5 Nov 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Secret

TRAVEL: 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 Mechanical Systems Design Integrator in Manhattan Beach, CA or Roy, UT to work with our Sentinel Systems Engineering & Integration (SE&I) Business Unit’s System Integration & Sustainment (SIS) Operating Unit and contribute to the Weapon System Integration (WSI) team. This multi-tiered and multi-disciplined team assesses design compatibilities across program segments. The team serves as the objective integrators to ultimately ensure full-lifecycle capability effectiveness through gap assessments (requirements, interfaces, architecture, process, etc.), risk identification and mitigation, and issue discovery and handling with a primary focus on cross-segment boundaries. The team serves as system integrators to facilitate systems of systems interoperability and joint systems integration in partnership with customer counterparts and other key stakeholders across the enterprise.

What You’ll Get To Do:

The candidate will be a member of WSI’s Mechanical Design Integration (MDI) team and will:

  • Leverage 3D CAD development experience and knowledge of mechanical design and design integration principles to review high-level program NX models and Interface Control Models (ICMs) for potential gaps or issues
  • Clearly demonstrate foundational mechanical and systems engineering skills to drive process and technical gap resolution of interface and requirement design solutions to achieve program and contract objectives
  • Support engineering processes & analyses across product team designs to prove successful design integration and analyze for potential gaps at a high level
  • Support the delivery of designs packages in a cross functional environment to achieve a compliant mechanical interface design across a weapon system
  • Foster engagement across diverse teams, ensuring appropriate coordination between SE&I and other integration, systems, mechanical design teams
  • Mentor and coach
  • Participate in technical planning, process development and improvement, and cost and risk management for program integrated systems
  • Perform functional analysis, timeline analysis, detail trade studies, requirements allocation assessments, and interface definition studies to ensure customer requirements are translated into effective design solutions
  • Lead Integration activities in support of systems-of-systems integration which may include integration test planning, problem identification and reporting, integration event execution, coordination with multiple stakeholders to facilitate effective and efficient communication
  • Demonstrate strong leadership and management skills, with a track record as a motivated leader, an effective communicator, and problem solver who is able to develop and maintain good working relationships with internal and external stakeholders
  • Demonstrate a commitment to ethics and integrity, and the capability to innovate while challenging traditional ways of doing business
  • Work independently with minimum supervision, positive demeanor and highest ethics

Basic Qualifications

  • 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
  • Must have the ability to obtain a U.S. Government DoD Top Secret security clearance
  • Must have the ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period, as determined by the company to meet its business needs
  • Knowledge of mechanical design and design integration principles
  • 1+ year(s) experience with product lifecycle management (PLM) systems (e.g. CPLM/Siemens Teamcenter)
  • Working knowledge of systems engineering principles and processes

Principal Level - T03:

  • BS in a STEM discipline from an accredited university with 5 years of related experience, 3 years with Masters, 1 year with PhD
  • 3+ years experience in Mechanical Engineering
  • 2+ years direct development experience of mechanical interface products (ICMs), including interfacing with other IPTs
  • 1+ year(s) experience with management or execution of interface products (Interface Requirements Specification (IRS), Interface Design Description (IDD), Interface Control Document (ICD)) and requirement specifications
  • 2+ years experience on large scale / complex aerospace/defense system development across multiple Engineering and Manufacturing Development (EMD) lifecycle phases: preliminary design, detailed design, integration and test, verification and sell off, transition to production.
  • 1+ year(s) experience in developing and executing Mechanical Engineering process governance documentation &/or mechanical risk management
  • 1+ year(s) experience developing 3D CAD models with Product Manufacturing Information (PMI) annotation in tools such as NX, Solid Edge, CATIA, etc.

Sr Principal Level - T04:

  • BS in a STEM discipline from an accredited university with 8 years of related experience, 6 years with Masters, 4 years with PhD
  • 5+ years experience in Mechanical Engineering
  • 3+ years direct development experience of mechanical interface products (ICMs), including interfacing with other IPTs
  • 2+ years experience with management or execution of interface products (IRS, IDD, ICD) and requirement specifications
  • 3+ years experience on large scale / complex aerospace/defense system development across multiple EMD lifecycle phases: preliminary design, detailed design, integration and test, verification and sell off, transition to production.
  • 2+ years experience in developing and executing Mechanical Engineering process governance documentation and/or mechanical risk management
  • 1+ year(s) experience in team environments with technical leadership responsibilities including but not limited to leading a large group of engineers, briefing program leadership, and driving program execution
  • 2+ years experience developing 3D CAD models with PMI annotation in tools such as NX, Solid Edge, CATIA, etc.

Preferred Qualifications

  • Experience with cable routing development in NX and Siemens Capital
  • Active Special Access Program (SAP)
  • Bachelor's and/or Master’s Degree in Mechanical or Aerospace Engineering from an accredited institution
  • Working knowledge of program’s Engineering Drawing and Modeling Manual (EDMM) and/or Interface Control Model Manual
  • 3+ years experience in ICBMs and past/active em
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