Principal Mechanical Engineer for Optical Systems

Nashua, NH

Our mission is to push the boundaries of the possible. We take pride in creating purposeful work and providing the opportunity for growth in new fields. As a Principal Mechanical Engineer, you will be responsible for mechanical solutions and designs, provide inputs to system solutions and lead tradeoffs on tolerancing. Your domain experience will focus on in-depth analysis to meet the demanding space, ground, and airborne optomechanical systems of our unique AI-enabled solutions. You will have the opportunity to support new business opportunities and be an active leader who develops engineers, designers, and technicians on our team.


Essential Duties & Responsibilities

  • Perform mechanical engineering on multiple optoelectronic projects through all phases of development and manufacturing
  • Perform engineering analysis to validate design solutions with respect to technical performance, environmental durability, manufacturability, schedule, and cost
  • Spearhead technical specifications, conceptual designs, trade studies, detail designs, procedures, assembly, testing, and reports
  • Create and review technical data packages including fabrication, source control, and assembly drawings in accordance with ASME Y14.5 and internal drawing standards
  • Provide technical solutions to complex problems which require regular use of technical acumen, ingenuity, and creativity
  • Support the on-time execution of development programs by proactively mitigating risks, pursuing opportunities, and coordinating across a multi-disciplinary team
  • Author and conduct internal design reviews to receive, provide and incorporate feedback from peers and management ahead of key program milestones
  • Employ strong interpersonal and communication skills while contributing to an integrated product team
  • Contribute content to cost, schedule, and technical volumes of outgoing bids and proposals
  • Demonstrate accountability to obtain results and achieve major organizational objectives

Position Requirements

  • An M.S. degree in mechanical or optical engineering with 8 years of experience or B.S. with 10 years of experience
  • Strong design skills and demonstrated proficiency with SOLIDWORKS and finite element analysis (FEA)
  • Experience in Thermal analysis or space-grade hardware a plus
  • Proficiency with GD&T applications per ASME Y.14-5
  • Working knowledge of components, component failure modes, MIL Specs, and MIL Standards
  • Excellent written and oral communications skills
  • Excellent team building and project management skills
  • U.S. citizenship and the ability to receive security clearance if required

COVID-19 Considerations:

We have a strict COVID protocol exceeding CDC guidelines. We wear masks and maintain 6-10 ft distance. We do 100% temperature screening and 100% handwashing prior to entering our building. All meetings take place thru video. 40% of staff telecommute. We care deeply about safety

About Clear Align:

Clear Align houses a highly sophisticated facility and engineering team in an organizational structure that is nimble, customer-driven and non-bureaucratic. Members of our team bring deep domain expertise in their areas of study combined with excellent project management and communication skills enabling small product-focused teams to deliver value quickly and effectively.  

Clear Align is an equal-opportunity employer that encourages diversity.

US Citizen or Permanent Residency Required

To apply, please send your resume with cover letter to