Jobs in the United States

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Added 2 days ago
Principal Fluids Engineer
Blue Origin Personnel, LLC
Space Coast, FL · Denver, CO
15 or more years of experience in the fields of fluids or thermodynamic analysis
Added 2 days ago
Principal Thermal Engineer
Blue Origin Personnel, LLC
Space Coast, FL · Denver, CO
Demonstrated expertise with one or more thermal/fluids modeling tools is required
Added 3 days ago
Lead Principal Systems Engineer - Zero Boil Off
Blue Origin Personnel, LLC
United States
We are actively seeking a Lead Principal Systems Engineer to play a pivotal role in our ambitious Zero Boil Off (ZBO) cryocooler program, focused on pushing the boundaries of aerospace…
Added 3 days ago
Mechanical Engineer, Fluids, Environmental, and/or Thermal Control
Axiom Space
United States
…mission-driven team is seeking a bold and dynamic Mechanical Engineer with Fluids, Environmental, and/or Thermal Control experience who is fueled by high ownership, execution horsepower,…
Added 4 days ago
Principal Thermal Mechanical Engineer
JETCOOL Technologies Inc
MA
To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Principal Thermal Mechanical Engineer located in Littleton, MA.
Added 4 days ago
Principal Thermal Mechanical Engineer
JETCOOL Technologies Inc
MA
To support our extraordinary teams who build great products and contribute to our growth, we’re looking to add a Principal Thermal Mechanical Engineer located in Littleton, MA.
Added 5 days ago
Sr. Principal Mechanical Engineer
QinetiQ
Franklin, MA
QinetiQ US is seeking a highly motivated Senior Principal Mechanical Engineer, who will be responsible for the design, development, analysis, and design maintenance of military and…
Added 5 days ago
Sr. Principal Mechanical Engineer
QinetiQ
Franklin, MA
QinetiQ US is seeking a highly motivated Senior Principal Mechanical Engineer, who will be responsible for the design, development, analysis, and design maintenance of military and…
Added 5 days ago
Mechanical Test Operations Engineer - Certified Test Conductor
Lockheed Martin
Kennedy Space Center, FL · FL · North Merritt Island
Must not hold Certified Principal Engineer (CPE) or Responsible Systems Engineer (RSE) certification/status.
Added 5 days ago
SG
RF/Microwave Lead/Principal Consulting Engineer
SimuTech Group
Remote, United States
- $145,000 to $200,000 USD / year
Interest in multiphysics simulation (thermal, structural, fluids, acoustics)
Added 9 days ago
Sentinel Principal/Sr Principal Systems Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Principal / Sr. Principal Modeling & Simulation Systems Engineer (level 3/4) to join its team. This position is in Roy, UT and will support the…
Added 10 days ago
Principal Mechanical Engineer
QinetiQ US
Franklin, MA
QinetiQ US is seeking a highly motivated Principal Mechanical Engineer, who will be responsible for the design, development, analysis, and design maintenance of military and commercial…
Added 10 days ago
Sr. Principal Modeling Simulation & Analysis Systems Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Sr. Principal Modeling & Simulation Systems Engineer (level 4) to join its team. This position is in Roy, UT and will support the Sentinel…
Added 10 days ago
Sentinel Principal/Sr Principal Systems Engineer - 18980*
Northrop Grumman
Roy
Northrop Grumman Defense Systems is seeking a Principal / Sr. Principal Modeling & Simulation Systems Engineer (level 3/4) to join its team. This position is in Roy, UT and will support the…
Added 10 days ago
Sentinel Principal/Sr Principal Systems Engineer - 18980*
CORP-Corporate Office
United States
Northrop Grumman Defense Systems is seeking a Principal / Sr. Principal Modeling & Simulation Systems Engineer (level 3/4) to join its team. This position is in Roy, UT and will support the…
Added 12 days ago
Senior Principal Air Vehicle Management Engineer
Northrop Grumman
Marietta, GA
Northrop Grumman Aeronautics Systems sector is seeking a Senior Principal Air Vehicle Management Engineer (Level 4) to join our team of qualified, diverse individuals in defining the…
Added 12 days ago
Cardiac Rhythm Management Technical Field Engineer - Seattle, WA
Medtronic
Seattle, WA · Tacoma, WA · Spokane, WA
Added 12 days ago
Maintenance - Lead
Amcor
AF Mundelein Healthcare Packaging, IL
Develop Training program for maintenance team with Engineer and Maintenance Manager.
Added 14 days ago
Cardiac Rhythm Management Technical Field Engineer - Seattle, WA
Medtronic
Tacoma, WA · Spokane, WA
Added 14 days ago
Production Engineer/ Research Science Specialist (1704)
Aramco Services Company
Houston, TX
…productivity enhancement including fracturing and matrix stimulation fluids, sand control, water shutoff to increase production and recovery from conventional and unconventional reservoirs;…
Added 14 days ago
MC
Principal Automation Engineer
Marotta Controls, Inc.
Parsippany, NJ
- $170,000 to $230,000 USD / year
We are seeking a skilled and motivated Automation Engineer to join our team in the Aerospace manufacturing industry. This role is responsible for the design, implementation, and maintenance…
Added 16 days ago
Mechanical Propulsion Engineer
Lockheed Martin
Englewood, CO · Englewood
This role is for a Certified Principal Engineer (CPE) deleagte for the Gas Generator (GG). In this role, you will have the opportunity to: manage hardware components, be empowered to…
Added 16 days ago
Mechanical Engineer Sr - E3
Lockheed Martin
Englewood, CO · Englewood
This role is for a Mechanical Engineer Certified Principal Engineer( CPE) for the FBM Mechanical Controls team. In this role, you will have the opportunity to: manage hardware components,…
Added 16 days ago
Mechanical Engineer - E2
Lockheed Martin
Englewood, CO · Englewood
This role is for a Mechanical Engineer Certified Principal Engineer (CPE) Delegate for the FBM Mechanical Controls team. In this role, you will have the opportunity to: manage hardware…
Added 16 days ago
Mechanical Test Operations Engineer - Certified Test Conductor
Lockheed Martin
Kennedy Space Center, FL · FL · North Merritt Island
Must not hold Certified Principal Engineer (CPE) or Responsible Systems Engineer (RSE) certification/status.

QinetiQ US

Principal Mechanical Engineer

Franklin, MA, United States

The salary range for this role is $134,000- $175,000 USD.

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Job details

Pay: The salary range for this role is $134,000- $175,000 USD.
Apply by: Oct 22, 2027
Experience: 10-20 years’ experience in mechanical design.
Posting language: English
Posted: Oct 22, 2026

Original job description

Company Overview

We are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR).

QinetiQ US’s dedicated experts in defense, aerospace, security, and related fields all work together to explore new ways of protecting the American Warfighter, Security Forces, and Allies. Being a part of QinetiQ US means being central to the safety and security of the world around us. Partnering with our customers, we help save lives; reduce risks to society; and maintain the global infrastructure on which we all depend.

Why Join QinetiQ US?

If you have the courage to take on a wide variety of complex challenges, then you will experience a unique working environment where innovative teams blend different perspectives, disciplines, and technologies to discover new ways of solving complex problems. In our diverse and inclusive environment, you can be authentic, feel valued, be respected, and realize your full potential. QinetiQ US will support you with workplace flexibility, a commitment to the health and well-being of you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives.

Position Overview

QinetiQ US is seeking a highly motivated Principal Mechanical Engineer, who will be responsible for the design, development, analysis, and design maintenance of military and commercial hardware products. Products include ruggedized military electronic equipment for maritime applications, robotic ground vehicles, vehicle autonomy hardware and ground robots. Acting as a technical lead supporting existing and new products, the candidate will evaluate design changes, perform design and analysis tasks, plan and oversee design tasks, review and approve design documentation at our Franklin, MA facility.

Responsibilities

Electromechanical design, layout, modeling and production support of electro-mechanical assemblies and electronics packaging (using Solidworks and/or CREO).
Analysis of complex mechanical systems via ANSYS Workbench implementing both explicit and implicit modeling to study vibration, shock, fluids, Fluent, structural loading, and thermal responses / performance of the system.
Implement Design for Manufacturability (DFM) practices.
Create/update detailed designs and drawings for fabrication.
Interface with customers and vendors on a project engineering level.
Writing design specifications, reports, and proposals.
Presenting technical internal and customer presentations.
Perform tolerance analysis, check and approve detail designs and drawings
Provide technical guidance to vendors and manufacturing in the build of DoD electromechanical assemblies.
Disposition discrepant material, author fabrication deviations for suppliers, support assembly personnel in support of manufacturing military electronic equipment.
Must support both Devens and Franklin facilities.
Must be able to obtain and maintain a DoD Security Clearance if required.

Required Qualifications

10-20 years’ experience in mechanical design.
Direct project engineering or technical lead experience managing design tasks
Experience performing Finite Element Analysis
Design of maritime systems and hardware
Design of robotic systems and hardware
Capable of following mechanical programs from inception through system integration
Capable of leading design teams of up to 6 engineers/designers
Knowledge of sheet metal fabrication, machining processes
Knowledge of stage-gate and design cycle processes
Experience with welding standards and practices.
Experience in processing Engineering Changes to documentation on DoD programs.
Mechanical Engineering BS (or equivalent), MS preferred.

Preferred Qualifications

Experience with Ansys Fluent and CFX is desired.
Ability to develop analytical models for both forced and free convection systems in Excel or MathCAD.
A strong understanding of structural systems, DOD shock/vibration and system dynamics is desired.

Pay Transparency

The salary range for this role is $134,000- $175,000 USD. The salary range provided is a good faith estimate representative of all experience levels. QinetiQ US considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Company EEO Statement

Accessibility/Accommodation:

If because of a medical condition or disability you need a reasonable accommodation for any part of the employment process, please send an e-mail to staffing@us.QinetiQ.com or call (540) 658-2720 Opt. 1 and let us know the nature of your request and contact information.

QinetiQ US is an Equal Opportunity Employer. All Qualified Applicants will receive equal consideration for employment without regard to race, age, color, religion, creed, sex, sexual orientation, gender identity, national origin, disability, or protected Veteran status.

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More about this job

Skills

Electronics
Documentation
Packaging
Dassault Systemes SolidWorks
Mechanical systems
Presentation skills
Assembly
ICT system integration
Machining
Welding
Mechanical engineering
Ansys Fluent
Microsoft Excel
PTC Mathcad

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