Principal/ Senior Principal Mechanical Design Engineer
- Location
- United States-California-Woodland Hills
- Listed
- Today
About the role
- RELOCATION ASSISTANCE: Relocation assistance may be available
- CLEARANCE REQUIRED FOR START: Yes
- CLEARANCE TYPE: Secret
- TRAVEL: Yes, 10% of the Time
About the role
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 with providing the skills, 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!
We are looking for you to join our team as a Mechanical Design Engineer based out of Woodland Hills, CA or Salt Lake City, UT. As a Mechanical Design Engineer at Northrop Grumman, you will have a challenging and rewarding opportunity to be a part of our Enterprise-wide digital transformation.
Through the use of model-based engineering and agile practices, we continue to evolve how we deliver critical national defense products and capabilities for the warfighter. Our success is grounded in our ability to embrace change, move quickly and continuously drive innovation.
The successful candidate will be collaborative, open, transparent, and team-oriented with a focus on team empowerment & shared responsibility, flexibility, continuous learning, and a culture of automation.
This position will support senior mechanical engineers in the design of military avionics including inertial navigation and measurement systems and mission computers for the Sentinel program. This position is not eligible for remote work. This position will be 100% on-site at either our Woodland Hills or Salt Lake City facility. This role may offer a competitive relocation assistance package.
Responsibilities
- Primary role is to serve as a mechanical designer on a major Northrop Grumman Mission Systems program supporting inertial navigation systems
- Research, plan, design, and develop CAD models and 3D model based drawings using Siemens NX and Teamcenter
- Support all phases of the design lifecycle including modeling, drawings, procurement, test, and maintenance
- Preparation and presentation of reports, briefings, design documents (drawings and specifications)
- Support for engineering changes and problem reports
- Support for root cause analysis and quick resolution of manufacturing line stops and other critical production activities
- Collaborative work with other engineering organizations, program management, factory operations, global supply chain and mission assurance
Additional information
This requisition may be filled at a Principal or Senior Principal Mechanical Design Engineer based on the qualifications below.
Basic Qualifications for a Principal Mechanical Design Engineer
- Bachelor's degree in a Science, Technology, Engineering, Mathematics (STEM) discipline with five or more years applicable experience; OR a Master's degree in a STEM discipline with three or more years applicable experience; OR a PhD in a STEM discipline with 1 year of applicable experience
- Expertise with mechanical CAD software (Siemens NX preferred)
- Experience with Geometric Dimensioning and Tolerancing (GD&T), drawing creation, tolerance stack-up analysis, etc.
- Good presentation and writing/communication skills
- Experience mentoring junior level engineers
- Must have an Active US Government Secret or higher clearance with US Citizenship
Basic Qualifications for a Senior Principal Mechanical Design Engineer
- Bachelor's degree in a Science, Technology, Engineering, Mathematics (STEM) discipline with eight or more years applicable experience; OR a Master's degree in a STEM discipline with six or more years applicable experience; OR a PhD in a STEM discipline with four years of applicable experience
Preferred Qualifications for a Principal Mechanical Design Engineer
- Demonstrated proficiency with Siemens NX CAD software and Teamcenter PLM software
- Expert-level proficiency with GD&T per ASME Y14.5
- Familiarity with ASME and MIL standards
- Basic understanding of stress principles and component sizing
- Engineering lab experience including leak rate and vibration testing
- Knowledge of CCA components, layout, and cable routing
- Demonstrated high degree of creativity and ability to solve a wide range of difficult problems
- Demonstrated ability to be self-motivated, willing to learn, experience working in a team environment
- Competence and confidence working under pressure on requests with short turn-around times
- Excellent verbal and written communication skills, with the ability to present complex technical information clearly
- Proven ability to collaborate effectively with cross-functional teams
- Strong analytical and problem-solving skills, with a focus on continuous improvement
- Must be proactive and results-oriented, with a strong sense of ownership
Primary Level Salary Range
$89,400.00 - $134,200.00
Secondary Level Salary Range
$111,700.00 - $167,500.00
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.
Equal opportunity and legal notices
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. Citizenship is required for all positions with a government clearance and certain other restricted positions.
From Ngc's careers page, first listed on Rolev.ai on November 12, 2026. Rolev.ai is not the employer.
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Common questions
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This Principal/ Senior Principal Mechanical Design Engineer position at Ngc is located in United States-California-Woodland Hills. Always check Ngc's application page for specific state eligibility or relocation policies.
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