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BAE Systems · Nashua, NH

Principal Mechanical Engineer (Design/Analysis)

Nashua, New Hampshire, United StatesFull-timeSenior individual contributorDesign

Listed on BAE Systems’s official careers site. Posted October 1, 2026. Check that it is still open and apply there.

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Job description

Job Description

BAE Systems is seeking a Principal Mechanical Engineer to lead a team of mechanical engineers and to be a subject matter expert in designing and developing innovative mechanical solutions for dynamic electronic military systems. The ideal candidate will possess a strong background in mechanical engineering, excellent leadership and communication skills, and a proven track record of driving technical innovation.

Key Responsibilities

  • Lead a team of mechanical engineers in designing, developing, and integrating complex countermeasure and electromagnetic attack solutions Be a Mechanical Engineer on key business pursuits helping to define requirements that meet the needs of the customer
  • Develop robust hardware solutions to meet demanding customer requirements
  • Mentor and develop team members' skills to advance into technical leadership roles Perform / assess detailed design and analyses, including thermal and structural analyses Generate / assess 3D solid models, utilize GD&T principles, and perform tolerance analyses to ensure fit and function Generate/ assess designs against environmental requirements and generate prototypes for test and verification efforts Requirements: Strong background in mechanical engineering with expertise in design and analysis
  • Excellent leadership and communication skills Experience working with integrated military electronic hardware and related test equipment
  • Ability to work individually and in small team environments
  • Strong problem-solving skills and ability to execute complex projects Please note that pursuant to a government contract, this specific position requires US citizenship.

Because of the need for consistent, in-person collaboration and/or the requirement to perform all work onsite due to the nature of this particular role, it will be performed full-time on site. Required Education, Experience, & Skills

Education and Experience

  • Bachelor’s degree in Mechanical Engineering 6+ years’ experience in mechanical engineering T echnical

Skills

  • Strong background in mechanical engineering with expertise in design and analysis
  • Solid fundamentals of mechanical design, analysis, and documentation principles Experience with state-of-the-art mechanical engineering development software tools (ANSYS Workbench/Mechanical, PTC Creo, MATLAB, etc) Security Clearance
  • Must be able to obtain a Secret Clearance Preferred Education, Experience, & Skills Knowledge/experience with manufacturing, production, and sustainment of mechanical systems and hardware
  • Knowledge of design for manufacturing (DFM) principles ​​​​​​​​​​​​​ Soft Skills
  • Excellent leadership and communication skills
  • Strong written and verbal communication skills
  • Ability to work individually and in team environments
  • Strong problem-solving skills and ability to execute complex projects Motivated self-starter and problem solver with proven experience executing in multi-disciplinary teams Pay Information Full-Time Salary Range: $115779 - $196825 Please note: This range is based on our market pay structures.

However, individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience.

Employee Benefits

At BAE Systems, we support our employees in all aspects of their life, including their health and financial well-being. Regular employees scheduled to work 20+ hours per week are offered: health, dental, and vision insurance; health savings accounts; a 401(k) savings plan; disability coverage; and life and accident insurance. We also have an employee assistance program, a legal plan, and other perks including discounts on things like home, auto, and pet insurance.

Our leave programs include paid time off, paid holidays, as well as other types of leave, including paid parental, military, bereavement, and any applicable federal and state sick leave. Employees may participate in the company recognition program to receive monetary or non-monetary recognition awards. Other incentives may be available based on position level and/or job specifics. About BAE Systems Electronic Systems BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace and security company which delivers a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services.

Improving the future and protecting lives is an ambitious mission, but it’s what we do at BAE Systems. Working here means using your passion and ingenuity where it counts – defending national security with breakthrough technology, superior products, and intelligence solutions. As you develop the latest technology and defend national security, you will continually hone your skills on a team—making a big impact on a global scale.

At BAE Systems, you’ll find a rewarding career that truly makes a difference. Electronic Systems (ES) is the global innovator behind BAE Systems’ game-changing defense and commercial electronics. Exploiting every electron, we push the limits of what is possible, giving our customers the edge and our employees opportunities to change the world. Our products and capabilities can be found everywhere – from the depths of the ocean to the far reaches of space.

At our core are more than 14,000 highly talented Electronic Systems employees with the brightest minds in the industry, we make an impact – for our customers and the communities we serve. This position will be posted for at least 5 calendar days. The posting will remain active until the position is filled, or a qualified pool of candidates is identified.

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