Mechanical Engineer, Principal

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QinetiQ North America delivers world-class technology and revolutionary products to defense, security and commercial markets worldwide. Our offerings range from survivability and unmanned systems to power, controls, sensors, and transportation solutions. Customers rely on our products to increase readiness, improve mission effectiveness, streamline operations, increase situational awareness and enhance security.

At QinetiQ North America, you'll find a dedicated and talented team of people who enjoy their work and take pride in their accomplishments. As a member of our team, you'll work with cutting-edge technology and some of the industry's most brilliant minds. We offer a comprehensive, flexible benefit package including tuition assistance and career development opportunities. If you're interested in working for a technology-driven company that is the leader in its industry, but one that maintains the fast-paced, creative environment of a start-up, QinetiQ North America is the right place for you.

QinetiQ North America is an Equal Opportunity/Affirmative Action Employer and does not discriminate against any individual on the basis of race, color, religion or creed, sex, marital status, national origin or ancestry, citizenship, age, disability, veteran status, military service, sexual orientation, genetic information, or gender identity.


Any external applicant will be subject to a pre-employment background check.

Position requires U.S. citizenship.




Job purpose:

Candidate will facilitate and participate in mechanical design changes and support production of military and commercial maritime products. Products will include UUV’s, robotic vehicles, electromechanical packaged assemblies (militarized and commercial), electric motors/generators, and automated machinery.

The candidate will be responsible for conceiving, designing, building, debugging and developing wide ranging mechanical devices, mechanisms, and robotic sub systems. Most projects will have challenging requirements such as operating in harsh environments, shallow to moderate depths in sea water, operating in long, narrow, confined spaces, and/or corrosive environments.  This individual will be responsible for developing, evaluating, selecting, and implementing creative concepts to solve these types of problems with minimal complexity and at reasonable cost. 


Candidate should be proficient using 3-D Solid Modeling software (Solidworks and PTC Creo preferable) and have an understanding of manufacturing and testing practices. The candidate will perform as an engineering technical lead on projects, create and implement design changes, and act as an engineering liaison to manufacturing and quality.  The candidate will also provide technical input new business products and proposals. The candidate shall also be “hands-on” with abilities support mechanical design and product issues related to various DOD pre-production and production programs. 


Key responsibilities and accountabilities:

  1. Electromechanical design, layout and modeling of electro-mechanical assemblies (using Solidworks and/or PTC Creo), robotics and mechanisms.
  2. Perform structural, dynamic and thermal analysis.
  3. Create design specifications.
  4. Resolve manufacturing and quality issues, and report on equipment build status.
  5. Interface with customers on a project engineering level.
  6. Perform design and drawing checking and approval.
  7. Create non-conformance reports, and provide technical justification for material disposition.
  8. Interface with vendors ensuring “Design for Manufacturability” practices.
  9. Creation of detail designs and drawings for fabrication.
  10. Writing reports, presenting technical  internal and customer presentations


Required knowledge:

Design – Knowledge of design techniques, tools, and principals involved in production of precision technical plans, mechanical fabrication drawings, and models.  Familiarity with electric machine (motor and generator) design experience.  Proven history of designing robotics or maritime products, including deep sea product design. Design for manufacturability a plus.

Required Skills

Computer Aided Design – Must have experience with Solidworks or PTC Creo

Analysis – Must have experience with Stress and Thermal FEA. Experience with ANSYS Workbench for stress and thermal analysis, DOD shock/vibration a plus.

Drafting – Must have experience with creation of detailed drawing and geometric tolerancing (ASME Y14.5).

Communication- Must demonstrate excellent verbal and non-verbal communication skills.

Computer- Experience with MS Word, Excel, PowerPoint.

Preferred Skills

Thermal Analysis – Experience with resistance flow modeling is desired. Ability to develop analytical models for both forced and free convection systems in Excel or MathCAD. Experience with ANSYS CFX is a plus.

Structural Analysis – A strong understanding of system dynamics is desired. Ability to develop models for complex coupled systems and experience with rotational dynamics is a plus.



  1. 10-20 years’ experience in mechanical design.
  2. Direct project engineering or technical lead experience managing design tasks
  3. Design of robotic systems and hardware
  4. Design of maritime systems and hardware
  5. Capable of following mechanical programs from inception through system integration
  6. Capable of leading design teams of up to 6 engineers/designers
  7. Knowledge of sheet metal fabrication, machining processes
  8. Experience with welding standards and practices.
  9. Experience in processing Engineering Changes to documentation on DoD programs.
  10. Mechanical Engineering BS (or equivalent), MS preferred.



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