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Senior Principal II Mechanical Engineer

BAE Systems, Inc.
Hudson, NH Full Time
POSTED ON 9/27/2025
AVAILABLE BEFORE 11/3/2025


Job Description


We are seeking a highly experienced and accomplished Senior Principal II Mechanical Engineer to join our team, supporting a program that spans all phases of the life cycle, from development to sustainment. You will become the next Subject Matter Expert (SME) on our team of talented engineers. As a senior technical leader, you will provide expertise and guidance across multiple disciplines, ensuring the successful design, development, production, and sustainment of complex mechanical systems. Your breadth of experience, technical expertise, and leadership skills will be essential in driving program success and mentoring junior engineers.



Key Responsibilities


  • Perform conceptual and detailed mechanical design
  • Work with program leadership and recommend solutions to complex problems
  • Comprehensively document designs
  • Communicate with a cross disciplinary team of stakeholders to ensure the final product meets all requirements
  • Create technical presentations on designs, risk items
  • Perform trade studies
  • Present designs at design reviews
  • Support procurement and build of prototype designs
  • Support qualification activities
  • Support technical demonstrations
  • Provide engineering support during production phases
  • Debug and find root cause on failures
  • Design for manufacturing (DFM)



Required Education, Experience, & Skills


  • Bachelor's or Master's degree in Mechanical Engineering or related field
  • 15 years of experience in mechanical engineering, with a strong background in design, development, production, and sustainment of complex systems
  • Proven expertise in mechanical systems, including materials, manufacturing processes, and testing methodologies
  • xcellent communication, leadership, and interpersonal skills, with the ability to collaborate with diverse stakeholders and teams
  • Strong analytical and problem-solving skills, with the ability to think critically and creatively
  • Able to obtain a TS and SCI clearance
  • Clear communication - both oral and written - and a positive attitude.
  • Ability to work effectively on a team either on-site or remotely.



Preferred Education, Experience, & Skills


  • Master's Degree in Mechanical or Aerospace Engineering and 15 years of relevant experience.
  • The ability to perform thermal and/or structural analysis using industry simulation tools (ANSYS Workbench preferred) is a plus.
  • Active Secret DoD Security Clearance within the last two years.
  • Experience with drafting principles and geometric dimensioning & tolerancing in accordance with ASME Y14.5-2009.
  • Experience/Expertise in thermal/structural Finite Element Analysis (FEA)

Ability to mentor less experienced engineers

  • The use of commercially available schedule tools and application of those tools within EVMS is a plus.


Pay Information

Full-Time Salary Range: $146670 - $249330

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.

Salary : $146,670 - $249,330

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