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Keywords: Part-Time Mechanical Engineer - Principal Level, Location: USA

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Senior Principal Mechanical Engineer - Structural

Senior Principal Structural Engineer to join the Mechanical Analysis and Test Department. In this role... The Mechanical Analysis and Test (MA&T) Department is responsible for ensuring structural and thermal design robustness...

Location: Tucson, AZ
Posted Date: 17 Jan 2026

Principal Mechanical Engineer - Thermal Engineer

Principal Thermal Engineer to join the MA&T Department. The Thermal Engineer is responsible for detailed thermal analysis... grade is expected to have a level of technical competence with thermodynamic principles. The Thermal Engineer will be held...

Location: Tucson, AZ
Posted Date: 17 Jan 2026

Principal Mechanical Engineer

Mechanical Products Team (MPT), Shipboard Effectors Department is seeking a Principal Mechanical Engineer for our Louisville KY... Matter Expert for Mechanical Design issues providing mentorship, development and review of lower-level Engineer’s work...

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: 16 Jan 2026

Principal Mechanical Engineer

, integration, and production support. We have an opportunity for an experienced Principal Mechanical Engineer to support... as operations, systems, quality and program offices. This Principal Engineer role will be based in Marlborough...

Posted Date: 16 Jan 2026

Onsite Senior or Principal Mechanical Engineer - Data Centers

Overview: Our Data Center Mission Critical Group is seeking a Part Time Senior or Principal Mechanical Engineer... to work onsite in Amarillo, TX at a hyperscale data center site. This will be a 1 to 2-year part time project. Step...

Company: Enercon
Location: Amarillo, TX
Posted Date: 16 Jan 2026

Associate Principal, Mechanical Engineer / Project Manager

how we shape a better world. The Opportunity We are looking for an Associate Principal, Mechanical Engineer / Project Manager... sustainability goals. · Bachelor's Degree in Mechanical Engineering required. · PE required; experienced engineer of record...

Company: Arup
Location: New York City, NY
Posted Date: 04 Jan 2026
Salary: $171000 - 240000 per year

Senior / Principal Mechanical Design Engineer: End-to-End Electro-Mechanical Development (Med Device or Military / Defense)

or Sr. level Mechanical Design Engineer. KORE1, a nationwide provider of staffing and recruiting solutions..., has an immediate opening for a Senior / Principal Mechanical Design Engineer: End-to-End Electro-Mechanical Development (Med Device...

Company: Kore 1
Location: Gray, ME
Posted Date: 04 Jan 2026
Salary: $90000 - 135000 per year

Principal Mechanical Engineer

. We are looking for you to join our team as a Principal Mechanical Engineer based out of Linthicum, MD. Combat Sensors Hardware Engineering is seeking a self...-motivated, experienced mechanical design engineer to support Receiver-Exciter, Processor and Wired Chassis program production...

Company: Northrop Grumman
Location: Linthicum, MD
Posted Date: 19 Dec 2025
Salary: $98900 - 148300 per year

Principal Development Engineer (Mechanical/Process)

Energy could be just what you’re looking for. The Principal Development Engineer (Mechanical/Process) provides the... energy storage, geothermal power, etc. is preferred. This is a principal-level role. Accordingly, the candidate is expected...

Company: Xcel Energy
Location: Denver, CO
Posted Date: 19 Dec 2025
Salary: $109300 - 152766 per year

Mechanical Engineer/Principal Mechanical Engineer ECS - *16969

are not only part of history, they're making history. Northrop Grumman’s Defense Systems is seeking a Mechanical Engineer/Principal... Bring These Qualifications: This requisition may be filled at either the Mechanical Engineer level (T02) or Principal...

Company: Northrop Grumman
Location: USA
Posted Date: 17 Dec 2025
Salary: $72100 - 108100 per year

Sentinel - Principal / Sr. Principal Mechanical Engineer

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

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

Principal/Sr. Principal Mechanical Engineer ECS - *16966

Engineer level (T03) or Sr. Principal Mechanical Engineer level (T04). Principal Mechanical Engineer: Bachelor’s degree... are not only part of history, they're making history. Northrop Grumman’s Defense Systems sector is seeking a Principal Mechanical...

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

Mechanical Field Engineer (Gas/Steam Turbine) (Staff, Senior or Principal)

Energy could be just what you’re looking for. The below job summary and responsibilities reflect the senior engineer level... as different skills and/or experience will be required at the staff and principal engineer levels. This is a hybrid (3 days...

Company: Xcel Energy
Location: Minneapolis, MN
Posted Date: 11 Dec 2025
Salary: $94600 - 152766 per year

Principal/Senior Mechanical Design Plant Engineer - Boiler & Pressure System

) and Principal Mechanical Design Plant Engineer (P4) candidates. The level will be determined based on the successful applicant... that are also affordable and accessible to all. We're hiring for a position open to both Senior Mechanical Design Plant Engineer (P3...

Company: PGE
Location: Portland, OR
Posted Date: 22 Nov 2025
Salary: $99975 - 197375 per year

Principal Building Mechanical Engineer

Building Mechanical Engineer to join our team! In this role you will get to lead the design of complex infrastructure projects.... Unleash your talent and redefine what’s possible. Job Description: Parsons is looking for an amazingly talented Principal...

Company: Parsons
Location: USA
Posted Date: 01 Nov 2025
Salary: $100900 - 176600 per year

Principal Mechanical Design Engineer

Description : The Principal Mechanical Design Engineer designs and analyzes mechanical parts, systems, equipment... to: Integrates technical requirements within program constraints to create high level mechanical solutions. Interfaces...

Posted Date: 01 Nov 2025
Salary: $162000 - 180000 per year

Principal Process Mechanical / Wastewater Engineer

and deliver more impact together. Role description: Arcadis is looking for a Principal Process Mechanical / Wastewater Engineer... to help build and grow our water practice in the Florida region. Role accountabilities: The Principal Process Mechanical...

Company: Arcadis
Location: Tampa, FL
Posted Date: 30 Oct 2025
Salary: $113933 - 193686 per year

Sr. Principal Engineer Mechanical (Thermal & Cooling)

are not only part of history, they're making history. Northrop Grumman Mission Systems is seeking a Mechanical Engineer in Beavercreek... Basic Qualifications for Sr. Principal Mechanical Engineer: Bachelor of Science (BS) degree in science, technology...

Company: Northrop Grumman
Location: USA
Posted Date: 29 Oct 2025
Salary: $124900 - 187300 per year

Principal/ Sr. Principal Engineer Mechanical

below. Basic Qualifications for Principal Mechanical Engineer: - Bachelor of Science degree in Mechanical or Aerospace... to start. Basic Qualifications for Sr. Principal Mechanical Engineer: - Bachelor of Science degree in Mechanical...

Posted Date: 28 Oct 2025
Salary: $95800 - 143600 per year