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QinetiQ

Global defense, security, and aerospace engineering

Principal Mechanical Engineer

Design EngineeringPosted on Nov 5
Full-time$134k - $175k

About the Job

Requirements

  • Bachelor's degree in Mechanical Engineering.
  • At least 10 years of experience in mechanical design.
  • Direct project engineering or technical lead experience managing design tasks.
  • Experience using ANSYS for structural, thermal, and computational fluid dynamics (CFD) analysis.
  • Experience designing maritime systems and hardware.
  • Experience designing robotic systems and hardware.
  • Ability to follow mechanical programs from inception through system integration.
  • Ability to lead design teams of up to six engineers or designers.
  • Knowledge of sheet metal fabrication and machining processes.
  • Knowledge of stage-gate and design cycle processes.
  • Experience with welding standards and practices.
  • Experience processing engineering changes to documentation on Department of Defense programs.
  • Must be able to obtain and maintain a Department of Defense security clearance.

Responsibilities

  • Design, lay out, model, and support production of electromechanical assemblies and electronics packaging using SolidWorks and/or Creo.
  • Analyze complex mechanical systems using ANSYS Workbench, including explicit and implicit modeling to study vibration, shock, fluids, Fluent, structural loading, and thermal responses or system performance.
  • Implement Design for Manufacturability practices.
  • Create and update detailed designs and drawings for fabrication.
  • Interface with customers and vendors at the project engineering level.
  • Write design specifications, reports, and proposals.
  • Present technical presentations internally and to customers.
  • Perform tolerance analysis and check and approve detail designs and drawings.
  • Provide technical guidance to vendors and manufacturing teams building Department of Defense electromechanical assemblies.
  • Disposition discrepant material, author fabrication deviations for suppliers, and support assembly personnel in manufacturing military electronic equipment.
  • Support both the Devens and Franklin facilities.
  • Obtain and maintain a Department of Defense security clearance if required.

Desired Qualifications

  • Ability to develop analytical models for forced and free convection systems in Excel or Mathcad.
  • Strong understanding of structural systems, Department of Defense shock and vibration, and system dynamics.
  • Master's degree or higher in Mechanical Engineering.

About the Company

QinetiQ

Global defense, security, and aerospace engineering

QinetiQ is a global science and engineering company serving defense, security, and aerospace markets. It delivers advanced technologies, testing, evaluation, and integrated engineering services for government and commercial customers, including R&D, systems design, testing facilities, and program support to design, verify, and deploy defense and security solutions. The company originated from the UK's Defence Evaluation and Research Agency (DERA) and was privatized to become a private company, later expanding via Carlyle Group’s investment and a London IPO to grow, especially in the U.S. defense market. This mix of government-originated expertise and private-sector growth helps it offer broad, end-to-end capabilities across international projects. Its goal is to provide trusted science and engineering capabilities that help protect nations and people by delivering reliable defense, security, and aerospace solutions.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Tavistock, United Kingdom
Founded
1956

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