Senior Mechanical Engineer, Development (Sign On Bonus Available)

BAE Systems is seeking a Senior Mechanical Engineer to join our Countermeasure & Electromagnetic Attack Solutions team in Nashua, NH. We develop next-generation threat detection and countermeasure solutions that provide unparalleled electronic warfare capabilities to enhance mission survivability. This role spans the full product lifecycle—business capture, development, production, testing, and sustaining—for a variety of complex defense products and technologies. You will collaborate closely with electrical, mechanical, software, firmware, and test engineers, as well as product managers and stakeholders, in an Agile hardware development environment.

About the role

This position involves leading mechanical engineering designs, development, integration, testing, and production of complex military systems. The ideal candidate thrives in a learning environment that encourages leadership and technical growth, with a strong focus on Agile hardware development, risk-reduction prototyping, and requirements-driven design and verification.

Responsibilities

• Lead mechanical engineering designs, development, integration/test, and production of complex and dynamic military systems
• Generate 3D solid models, drawings, and documentation utilizing GD&T principles
• Perform tolerance analyses to assure fit and function
• Perform thermal, structural/stress, and modal/vibration analyses
• Assess designs against environmental requirements
• Develop prototypes and conduct test and verification efforts
• Partner with other engineering disciplines and operations personnel to develop solutions adhering to DTUPC, DFT, and DFM requirements
• Support resolution of technical issues discovered during manufacture and test of deliverable hardware
• Evaluate and troubleshoot mechanical faults and issues, assessing test failures for root cause and identifying disposition/corrective actions
• Design test equipment to ensure the performance and integrity of manufactured products
• Participate in requirements development, technical trade studies, and evaluating technology insertion/upgrades
• Develop and execute test plans, including integration of test solutions, and provide detailed reports on test results
• Participate in new business capture

Requirements

• Bachelor's degree in Mechanical Engineering
• 4+ years (or 2+ years with MS ME) designing, testing, and troubleshooting high-reliability embedded systems
• Demonstrated understanding of mechanical principles, test methodologies, and ability to work with advanced test equipment and cutting-edge technology
• Strong “hands-on” laboratory experience with instrumentation, equipment, and processes
• Active DOD security clearance

Qualifications

• Understanding of heat transfer principles, strength of materials, materials selection, and design for vibration environments
• Experience with mechanical engineering tools for design and analysis, including ANSYS Workbench/Mechanical, PTC Creo, MATLAB/Simulink, Siemens NX, ANSYS Icepak
• Familiarity with design, analysis, and manufacturing standards for complex multilayer rigid and rigid-flex CCAs
• Knowledge of engineering development processes for the aero/defense industry, including designing and testing to ASTM, SAE, DO, and MIL-STD-810
• Agile hardware development experience
• Exceptional ingenuity, creativity, and resourcefulness
• Control account management experience
• Experience with LRIP/FRP, especially electronics manufacturing and test methodologies
• Familiarity with AS9145 compliant processes
• Strong written and verbal communication skills

Pay

Full-Time Salary Range: $89,650 – $152,460. Individual salaries are determined by business considerations, local market conditions, and internal equity, as well as candidate qualifications such as skills, education, and experience.

Benefits

• Health, dental, and vision insurance
• Health savings accounts
• 401(k) savings plan
• Disability coverage
• Life and accident insurance
• Employee assistance program and legal plan
• Discounts on home, auto, and pet insurance
• Paid time off, paid holidays, and other leave programs (including paid parental, military, bereavement, and applicable federal/state sick leave)
• Company recognition program with monetary or non-monetary awards
• Other incentives based on position level and job specifics

Schedule

This role is full-time onsite due to the need for consistent, in-person collaboration and the requirement to perform all work onsite.

About BAE Systems Electronic Systems

BAE Systems, Inc. is the U.S. subsidiary of BAE Systems plc, an international defense, aerospace, and security company delivering products and services for air, land, and naval forces, as well as advanced electronics, security, information technology solutions, and customer support services. Electronic Systems (ES) is the global innovator behind game-changing defense and commercial electronics, pushing the limits of technology to give customers a competitive edge. Our products and capabilities span from the depths of the ocean to the far reaches of space, with over 14,000 employees driving impact in their communities and for national security.