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Senior Mechanical Engineer, Development Security Clearance

Job in Nashua, Hillsborough County, New Hampshire, 03060, USA
Listing for: BAE Systems
Full Time position
Listed on 2026-01-01
Job specializations:
  • Engineering
    Systems Engineer, Mechanical Engineer
Salary/Wage Range or Industry Benchmark: 89650 - 152460 USD Yearly USD 89650.00 152460.00 YEAR
Job Description & How to Apply Below
Position: Senior Mechanical Engineer, Development with Security Clearance
Job Description BAE Systems is seeking a Senior Mechanical Engineer to join our team in Nashua, NH! "We Protect Those Who Protect Us®" is our mission, and we're looking for engineers who share our passion in developing a full range of first-of-its-kind technologies and equipment to protect air, land, and naval warfighters on all fronts. At our Nashua, New Hampshire site, the Countermeasure & Electromagnetic Attack Solutions team provides next-generation threat detection and countermeasure solutions that provide unparalleled electronic warfare capabilities to enhance mission survivability.

If you are an individual who thrives in Agile hardware development environments, then we are interested in hearing from you! This exciting role spans the full product lifecycle - business capture, development, production, testing, sustaining - for a variety of complex defense products and technologies. You will collaborate closely with other electrical, mechanical, software, firmware and test engineers, as well as product managers and stakeholders to develop excellent solutions.

We are looking for candidates who are detail-oriented, possess strong analytical skills, and have a passion for continuous improvement. You will be responsible for ensuring the performance, quality, and reliability of electronic products through rigorous design, analysis, and testing. In addition, the ideal candidate has experience with, and is a strong advocate of, Agile hardware development, risk-reduction prototyping, and requirements-driven design and verification.

Typical duties assigned to this position:
* 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 & 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 that adhere 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, identifying disposition/corrective actions

* Design test equipment to ensure the performance and integrity of manufactured products

* Participate in requirements development, performing technical trade studies, and evaluating technology insertion/upgrades

* Develop and execute test plans, which includes the integration of test solutions, and provide detailed reports on test result

* Participate in new business capture The ideal candidate will thrive in a learning environment that encourages leadership and technical growth. 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 Required:

* Bachelor's degree in Mechanical Engineering
* 4+ years (or 2+ years with MS ME) designing, testing, and troubleshooting high-reliability mechanical systems
* Demonstrated understanding of mechanical principles, test methodologies, and the ability to work with advanced test equipment and cutting-edge technology
* Strong "hands-on" laboratory experience with instrumentation, equipment, and processes
* Eligible to obtain a DOD Security Clearance Preferred Education, Experience, & Skills Preferred:
* Possess an understanding in the application of heat transfer principles, strength of materials, materials selection, design for vibration environments and the ability to apply those principles to unique mechanical design challenges
* 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 associated with complex multilayer rigid and rigid-flex CCAs
* Knowledge of engineering development processes for aero/defense industry, including designing and testing to ASTM, SAE, DO, MIL-STD-810
* A self-starter with Agile hardware development experience
* Exceptional degree of 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
* Active DOD security clearance Pay Information
Full-Time Salary Range: $89650 - $152460

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…
Position Requirements
10+ Years work experience
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