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Keywords: Principal Mechanical Engineer / Sr. Principal Mechanical Engineer, Location: USA

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Principal Mechanical Engineer / Sr. Principal Mechanical Engineer (Instrumentation Subsystem Design)

/Sr. Principal Mechanical Engineer (Instrumentation Subsystem Design) to join our team of qualified, diverse individuals... be filled at either level. As a Principal/Sr. Principal Mechanical Engineer supporting the Instrumentation & Data team...

Company: Northrop Grumman
Location: Melbourne, FL
Posted Date: 03 Feb 2026
Salary: $95300 - 142900 per year

Principal Mechanical Engineer / Sr. Principal Mechanical Engineer

are not only part of history, they're making history. Northrop Grumman Space Sector is seeking a Principal Mechanical Engineer / Sr... Principal/Sr. Principal Mechanical Engineer will support the design, development, and integration of spacecraft structures...

Company: Northrop Grumman
Location: USA
Posted Date: 03 Feb 2026
Salary: $98400 - 147600 per year

Sentinel (GBSD) Principal / Sr. Principal Mechanical Engineer

Systems is seeking a Principal / Sr. Principal Mechanical MMV Engineer. This position is located in Roy, UT and supports the... with a Master's; or 1 year with a PhD Sr. Principal Mechanical Engineer: BS degree in Aerospace or Mechanical Engineering...

Company: Northrop Grumman
Location: USA
Posted Date: 03 Feb 2026
Salary: $89400 - 134200 per year

Sr Principal Mechanical Engineer - CCB Chair

-time Sr. Principal Mechanical Engineer to support Patriot Missile Change Control Board (CCB) for major components and sub... modeling with a minimum of 5 years of creating and documenting mechanical designs in Pro/Engineer/CREO or similar modeling...

Posted Date: 30 Jan 2026

Sr. Principal Mechanical Engineer - Aerospace

Systems, Platform Systems Modernization (PSM) Operating Unit (OU) is seeking a Sr Principal Mechanical Engineer..., and Platform/System Modification. **This Position is Contingent upon Funding. Role and Responsibilities: The Sr Principal...

Company: Northrop Grumman
Location: Lake Charles, LA
Posted Date: 23 Jan 2026
Salary: $111700 - 167500 per year

Principal/Sr. Principal Mechanical Engineer ECS - *16966

Engineer/Sr. Principal Mechanical Engineer to join a multi-functional team of Electrical, Mechanical, and Systems Engineers... Engineer level (T03) or Sr. Principal Mechanical Engineer level (T04). Principal Mechanical Engineer: Bachelor’s degree...

Company: Northrop Grumman
Location: USA
Posted Date: 17 Dec 2025
Salary: $89400 - 134200 per year

Sentinel - Principal / Sr. Principal Mechanical Engineer

of experience Sr. Principal Mechanical Engineer: Bachelor’s degree in a STEM field (Science, Technology, Engineering, Mathematics... Thursday to take every other Friday off. Basic Qualifications: Principal Mechanical Engineer: Bachelor’s degree in a STEM...

Company: Northrop Grumman
Location: USA
Posted Date: 17 Dec 2025
Salary: $89400 - 134200 per year

Principal or Sr. Principal Mechanical Engineer

and that are interested in expanding their horizons. The Mechanical Engineering Department is seeking a Principal Mechanical Engineer... or a Senior Mechanical Principal Engineer to join our team of qualified, diverse individuals. Essential Functions...

Company: Northrop Grumman
Location: Annapolis, MD
Posted Date: 04 Feb 2026
Salary: $98900 - 148300 per year

Principal or Sr. Principal Mechanical Systems Engineer (Naval Architect)

and that are interested in expanding their horizons. The Mechanical Engineering Department is seeking a Principal Mechanical Systems Engineer... / Senior Principal Mechanical Systems Engineer with a naval architecture or ocean engineering background in submersibles...

Company: Northrop Grumman
Location: Annapolis, MD
Posted Date: 04 Feb 2026
Salary: $108800 - 163200 per year

SD&I - Sr. Principal Mechanical Engineer

Engineering Department is seeking a Senior Principal Mechanical Engineer to provide Site Development and Integration (SD...’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. Raytheon Mechanical Engineering...

Posted Date: 31 Jan 2026

Sr. Principal Engineer – Mechanical Lead

mechanical and electrical engineering, manufacturing, technical services, materials science, structural and thermal analysis..., testing, and documentation. Within Hardware Engineering, the Advanced Airframes Department is seeking a Senior Principal...

Location: Tucson, AZ
Posted Date: 24 Jan 2026

Sr. Principal Mechanical Engineer-Structural Eng

Principal Structural Engineer to join the Mechanical Analysis and Test Department with a background in high temperature... to meet program milestones The Senior Pr. Mechanical Engineer - Structural job is in Tucson, AZ and the position is onsite...

Location: Tucson, AZ
Posted Date: 17 Jan 2026

Sr Principal Mechanical Engineer Lead

Principal Mechanical Engineer to support Patriot GEM-T Missile major components and sub-assemblies, including obsolescence... that create a safer, more secure world. The Raytheon Mechanical Engineering (ME) Organization leads the mechanical hardware...

Posted Date: 17 Jan 2026

Sr. Principal Mechanical Engineer – Hardware Lead

Department within Raytheon Hardware Engineering provides Mechanical Engineering support to develop solutions for products... across the Raytheon portfolio. Our core mechanical engineering responsibilities include requirements/conceptual development...

Location: Tucson, AZ
Posted Date: 24 Jan 2026

Sr Principal Mechanical Engineer

This opportunity is ideal for a self‑motivated, proactive engineer who will lead metal‑parts production projects for the MCA.... Trial new processes and technologies to improve quality and throughput. Apply solid mechanical‑systems and manufacturing...

Company: Northrop Grumman
Location: Plymouth, MN
Posted Date: 23 Jan 2026
Salary: $123400 - 185000 per year

Sr Principal Mechanical Engineer, Control Actuation Systems

Precision Control Actuation System department is seeking a mechanical design engineer to join the multi-disciplinary PCAS... with a prominent commercial software package​ Experience with Pro/Engineer/CREO 3D modeling and mechanical drawing generation...

Posted Date: 17 Jan 2026

Senior Principal Mechanical Engineer (HTI) - JJMT Electrophysiology

Job Description: Our J&J MedTech Electrophysiology Engineering team is currently recruiting for a Sr. Principal Mechanical Engineer. The.... Your unique talents will help patients on their journey to wellness. Learn more at Job Summary: The Senior Principal Engineer...

Location: Irvine, CA
Posted Date: 01 Feb 2026

Principal/Thermal Mechanical R&D Engineer

To support our exceptional teams in building innovative products, we are seeking a Principal Thermal/Mechanical R&D Engineer... based in Littleton, MA. Reporting to the Sr. Director of Research & Development, the Principle Thermal/Mechanical R...

Company: Flex
Location: Littleton, MA
Posted Date: 31 Jan 2026

Senior Principal Electro-Mechanical Engineer

. Principal Electro-Mechanical Engineer to develop leading-edge miniaturized 3DHI sensors and systems to enable future generation...: The RF Microelectronics/Module Design & Foundry Services Department at Raytheon in Andover, MA, is currently seeking a Sr...

Location: Andover, MA
Posted Date: 17 Jan 2026

Mechanical Design Engineer - Engineer, Principal

. NUCLEAR ENGINEER, SR/ GRADE 08: ($98,993 - $128,689): Has typically acquired 6 or more years of related engineering.... Job Description What You'll Do: This position plays a key role in maintaining the design and regulatory integrity of the plant’s mechanical...

Posted Date: 04 Feb 2026
Salary: $87633 - 151132.5 per year