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Senior Mechanical Engineer

John Galt Staffing
Acton, MA Full Time
POSTED ON 11/27/2025 CLOSED ON 12/25/2025

What are the responsibilities and job description for the Senior Mechanical Engineer position at John Galt Staffing?

Sr. Mechanical Engineer


Job Summary

  • Lead and support mechanical packaging development of RF radios and equipment; design mechanical systems that seamlessly integrate PCBs, EMI shielding, connectors, harnessing, and user interfaces
  • Develop CAD models and drawings for system components including: enclosures, radomes, PCBs, cabling and mounting brackets.
  • Apply Design for Manufacturing (DFM), Design for Assembly (DFA), and Design for Test (DFT) principles to ensure cost-effective, scalable production.
  • Perform mechanical stress, vibration, thermal and flow analyses as needed to validate designs and determine wind loading and drag coefficients.
  • Conduct dimensional tolerance analyses on mechanical and thermal interfaces to deliver proper assembly fit and thermal performance.
  • Provide hands-on support of prototype builds, component evaluations, and validation testing.
  • Develop and maintain product documentation, Bill of Materials (BOMs) and assembly instructions.
  • Support subcontractor or supplier activities related to design, manufacturing and component integration.


Basic Qualifications (Required Skills & Experience)

  • Minimum 5 - 10 years of relevant experience in mechanical packaging for telecom, avionics, UAV/UAS, aerospace, or automotive electronic systems.
  • Proficient with SolidWorks or equivalent for modeling of PCBs, electronics housings, and assemblies. Background in PCB mechanical design (sizing, panelizing, defining clearances, keep-outs, and fastening methods).
  • Experience designing parts for machining, casting, thermoforming and additive manufacturing (3d printing).
  • Experience with structural FEA, vibration, thermal and CFD flow analyses
  • Hands-on experience supporting prototype builds, lab testing, and design validation.
  • Excellent documentation, organization, time management, and communication skills
  • Strong problem solving skills coupled with intellectual curiosity and a positive, can-do, team-oriented attitude


Preferred Qualifications

  • Experience with thermal management designs for extreme environments; experience designing with heat pipes, vapor chambers, liquid cooling, various thermal interface materials
  • Experience packaging electronics with EMI shielding features and considerations

Salary : $110,000 - $140,000

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