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Mechanical Engineer

Lexington, MA, MA

Posted: 04/14/2026 Industry: Engineering and Technical Job Number: 18933 Security Clearance: ACTIVE - Secret

Job Description

Connexion’s mission is to provide "best in class" services to job seekers. We strive to achieve excellence in job placement, staffing, and recruiting services, while treating candidates with the professionalism and respect they deserve.

Job Title: Mechanical Engineer

Compensation, Benefits, and Employment Type
  • Duration: 3 years
  • Pay rate: $60-90/hr 
  • Benefits include medical insurance, 401(k), 10 days of Paid Time off, and 11 paid holidays
  • Job Location: Lexington, MA (100% on-site)
  • Schedule: M-F, standard business hours
  • Job#: 18933


Mechanical Engineering Group Overview
The Mechanical Engineering Group develops innovative design solutions for advanced technology prototypes across ground, maritime, air, and space platforms. Key application areas include laser communications, high-energy laser systems, optical sensing, biological detection, and large-scale antenna systems.

The group’s core capabilities include precision engineering, opto-mechanics, mechanisms, electronics packaging, large and lightweight structures, composite materials, and additive manufacturing. It also serves as the Engineering Division’s center for 3D CAD design and data management, supporting all phases of program execution from concept development through system integration and testing.


Position Summary
The selected candidate will support the mechanical design, integration, and testing of complex mechanical, opto-mechanical, and electro-mechanical systems as part of a multidisciplinary team under the direction of a Technical Project Manager.


Key Responsibilities

  • Design, integrate, and test complex hardware systems from concept through fabrication and field evaluation
  • Contribute to solutions involving structures, mechanisms, thermal systems, optics, and electronics
  • Collaborate closely with design, analysis, and test teams
  • Communicate technical progress and results to internal and external stakeholders

Basic Qualifications

  • Experience in mechanical design, assembly, and environmental testing of high-reliability systems (electronic, electro-optic, or opto-mechanical), preferably in DoD or aerospace environments
  • Proficiency with SolidWorks or similar 3D CAD software
  • Strong written and verbal communication skills
  • Ability to work both independently and in team settings

Preferred Qualifications

  • Experience developing opto-mechanical or electro-mechanical systems for aircraft and/or spacecraft
  • Background in DoD, military, or aerospace applications
  • Additional experience in opto-mechanical design

Education & Experience

  • Bachelor’s degree in Mechanical Engineering or Aerospace Engineering (required)
  • Master’s degree preferred
  • Typical experience:
    • Master’s + 3+ years relevant experience, or
    • Bachelor’s + 5+ years relevant experience

Additional Requirements

  • Active SECRET clearance required at start
  • Ability to travel to meetings and field sites as needed

Please use the apply button to submit your resume for consideration.  A Connexion Representative will contact you shortly.

You may also send your resume and cover letter via email to the recruiter listed below. You MUST include the Job# and Job Title in your subject line.

If you are active in a job search but this job is not for you, please reach out to jobpostings@csetalent.com. We would be glad to help you find the perfect job!

Job Requirements

SolidWorks, optics, electronic packaging, opto-mechanical, electro-optics

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