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Northrop Grumman

Principal Mechanical Engineer/Sr. Principal Mechanical Engineer

Oklahoma City, OK, United States

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Job details

Posting language: English
Posted: Aug 29, 2026

Original job description

RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE REQUIRED FOR START: No

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.

Description

Join NGC's 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.

This position is contingent upon contract award/funding

Advanced Test and Support Systems (ATSS) is seeking a Principle Mechanical Engineer / Senior Principle Mechanical Engineer (Level 3/4) to join our team of qualified and diverse individuals in Oklahoma City, OK. You will become part of an NGC team actively developing Avionics Testing Solutions and Specialized Test Equipment for the Sentinel Missile platform. We also work on and assist with the USAF B-2, E-3, and numerous other Government platforms. Our team members complete engineering efforts to solve complex problems and ensure warfighter supportability. The position will research, develop, design, and test electrical components, equipment, systems, and products for defense or commercial systems.

Responsibilities:

Design and define system architecture for new or existing complex integrated test systems
Coordinates design of subsystems and integration of total systems in a laboratory environment
Oversight and ownership of engineering design as well as 2D/3D drawing formats and standards for a wide array of mechanical products:
Product details
Product assemblies
Test Bench/Bay assemblies
Top Level installations
Thermal Analysis
Stress Analysis
Weight Analysis
Design for Manufacturing
FEA modeling
Development and coordination for internal and customer design reviews for the mechanical and system level designs of our products
Development of supporting documentation (operating / user manuals, etc.) for our products
Assist in troubleshooting of built equipment
Coordination with engineering manager(s) to ensure product technical data packages meet project schedule commitments
Coordinate between several internal and external stakeholder groups (Software Development, System Test, Cyber Operations, Procurement, etc.) to achieve contractual commitments
Establish milestones and monitor adherence to master plans and schedules.
Identify program problems and assist in the establishing of solutions, such as allocation of resources, improved processes, or changing contractual specifications.
Act independently to uncover and resolve issues associated with the development and implementation of programs.
Support process improvement and establishment.
Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.
Generate reports and presents to Government counterparts, defense contractors, and other cross-functional organizations.
Provide leadership and mentoring in addition to being an individual performer
Has technical insight and experience to know if test set-up and results make sense
Ability to establish and maintain frequent inter-organizational and outside customer contacts on routine matters.
Coordinates with team lead, electrical technicians, and I&T managers to complete tasking. May participate, prepare, and present material in program review boards (PDRs, CDRs, TRRs, FRBs, etc)

Basic Qualifications:

· Principle Mechanical Engineer: Bachelor's degree in Mech/Aero Engineering (or equivalent) with 5 years of related engineering experience OR a Master’s degree with 3 years of related engineering experience OR a PhD with 0 years of related engineering experience

· Senior Principle Mechanical Engineer: Bachelor's degree in Mech/Aero Engineering (or equivalent) with 8 years of related engineering experience; OR a Master’s degree with 6 years of related engineering experience; OR a PhD with 3 years of related engineering experience

· Ability to listen effectively, take direction, and possess initiative to accomplish assigned tasks and complete work in a timely fashion

· Ability to read engineering drawings and specifications

· Must be a U.S. Citizen with ability to obtain a DoD SECRET security clearance & special program access

Ability to obtain/maintain access to work on-site in Oklahoma City, Oklahoma.
Experience in Aerospace or Defense industry

· Experience leading multi-disciplinary technical teams

Ability to diagnose/troubleshoot/repair hardware components.
Experience with CAD or similar design tools

Preferred Qualifications:

· Active DoD SECRET or higher security clearance with investigation in the last five (5) years

· Active Program clearance

· Master’s Degree in Mechanical/Aerospace/Additive Manufacturing Engineering or related discipline

Experience in Additive Manufacturing or 3D-Print design & technologies
Experience in an Agile development environment
Experience in Instrumentation or Avionics Systems
Experience with any of the following CAD Software Tools and Data Management Products: CATIA, SolidWorks Mechanical/PDM, Siemens NX/Capital, Enovia SmarTeam, Team Center, ANSYS Fluent/Mechanical/Icepack/Discovery, Femap/Nastran/Patran, MATLAB

· Experience in Power Distribution Systems

· Experience with HW/SW Integration

· Experience in Nuclear Surety

· Experience in Manufacturing Engineering

· Experience with AS9100, ASME, and ISO Standards implementation

Experience with nuclear hardened systems.
Experience with design for manufacturing
Fabrication and testing experience.
Experience with Finite Element Analysis Method and other forms of analysis

Primary Level Salary Range: $84,700.00 - $158,600.00

Secondary Level Salary Range: $0.00 - $0.00

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: Engineering

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