JobsMechanical EngineerUnited StatesPrincipal Mechanical Engineer

QinetiQ US

Posted 4 days ago · Jobs at QinetiQ US

Principal Mechanical Engineer

QinetiQ US · Devens, Massachusetts, United States

OtherOn site10+ yrs$134k–$175kListed as no visa sponsorshipDefense and Space Manufacturing
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In short

The Principal Mechanical Engineer will lead the design, development, and maintenance of ruggedized military and commercial hardware, including robotic and maritime systems. They will oversee design tasks, perform complex mechanical analysis, and provide technical guidance to manufacturing and vendors.

What they're looking for

MUST-HAVE SKILLS

Bachelor's degree in Mechanical Engineering10+ years mechanical design experienceANSYS structural, thermal and CFD analysisProject engineering or technical leadMaritime systems and hardware designRobotic systems and hardware designLeading design teams of up to 6 engineers

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SolidWorks or CreoMaster's degree in Mechanical Engineering

Candidates must possess a Bachelor's degree in Mechanical Engineering and at least 10 years of experience in mechanical design and project engineering. Proficiency in ANSYS, CAD software, and knowledge of DoD standards are required, along with the ability to obtain a security clearance.

About the employer

QinetiQ US

Mission-led innovation in Robotics & Autonomous Systems, Mission Operations, ISR, Cyber and Information Advantage.

For over 60 years, QinetiQ US has been providing world-class technology development, engineering research and development and revolutionary products to the defense, security, and commercial markets.

Read more

Our mission-led approach to innovation ensures we get the best capabilities rapidly into the hands of our customers. Our capabilities include Mission Operations, ISR, Cyber, Information Advantage and Robotics & Autonomous Systems. Together, these play a growing role supporting missions by protecting the lives of our war fighters and protecting complex systems and critical assets. QinetiQ US is headquartered in McLean, Virginia and is part of QinetiQ Group PLC (QQ: LSE), one of the world’s leading defense and security technology companies.

INDUSTRY
Defense and Space Manufacturing
COMPANY
Public Company
FOUNDED
1956
HEADQUARTERS
McLean, Virginia
SIZE
1,001-5,000on LinkedIn
OFFICES
5 on LinkedIn
OPEN HERE
2 roles

KNOWN FOR

Unmanned SystemsMilitary SurvivabilityMaritime CapabilitiesUtility MonitoringSmart Grid TechnologyMilitary Armor

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Questions about this role

Is this QinetiQ US role remote?
Tagged on site.
What does it pay?
The posting lists $134,000–$175,000 a year.
Does it sponsor visas?
Listed as no visa sponsorship.
What experience does it ask for?
Listed as 10+ years.

The posting, in full

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).

▶ READ THE FULL POSTING

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 Devens, 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

  • Bachelor's degree in Mechanical Engineering
  • 10+ years’ experience in mechanical design
  • Direct project engineering or technical lead experience managing design tasks
  • Experience with ANSYS performing structural, thermal and CFD 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.
  • Must be able to obtain and maintain a DOD Security Clearance

Preferred Qualifications

  • 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.
  • Master's or higher level degree in Mechanical Engineering

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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This listing comes from QinetiQ US's own careers site. Apply links go to the employer. Company facts are from QinetiQ US's public profile. Last checked 9 Nov 2026.