Senior Mechanical Design Engineer​/Temporary Onsite

We are seeking a highly capable Senior Mechanical Design Engineer (contract/temporary) to support ongoing product development and improvement efforts. This is a hands‑on, execution‑focused role centered on improving existing designs, building hardware, and driving real-world performance.

The ideal candidate has 8+ years of experience, strong Onshape proficiency, and thrives in a fast‑paced, highly collaborative onsite environment.

• Design and improve components and systems based on existing products ("like design")
• Develop and release mechanical designs using Onshape
• Drive improvements in performance, manufacturability, and reliability
• Support testing, root cause analysis, and design iteration
• Prototype and evaluate alternative design approaches
• Contribute to system integration (mechanisms, motion systems, assemblies)
• Develop and refine assembly and test processes
• Collaborate cross‑functionally with engineering, manufacturing, and field teams
• Build, assemble, and validate prototypes and hardware hands‑on

• 8+ years of mechanical design experience
• Strong proficiency with Onshape (required)
• Experience across key domains: machined parts, sheet metal, plastics, mechanisms, power transmission, and thermal systems
• Experience with testing, debugging, and iterative design
• Strong understanding of DFM and practical manufacturing considerations
• Hands‑on capability, including building and validating designs independently
• Experience with electromechanical systems and system integration
• Ability to adapt and improve existing designs
• Comfortable working onsite in a collaborative environment

• Experience with large weldments and structural design (FEA a plus)
• Experience working around rotating machinery
• Background in reliability, failure analysis, or assembly/test process development

• Type:
  Contract / Temporary
• Location:
  Onsite (no remote)
• Duration: 6 month +
• Start:
  Immediate
• Growth Opportunity:
  This role has the potential to convert to a full‑time position based on performance and business needs

This role is critical to driving near‑term design execution, product improvements, and reliability gains. You will directly influence the performance and success of systems deployed in real‑world environments.

Location:

This role is based in Burlington, MA. We are seeking local candidates, as relocation assistance is not available.

Work Authorization:
Applicants must be authorized to work in the U.S. on a full‑time basis. We are unable to provide visa sponsorship for this position currently.

Equal employment opportunity, including veterans and individuals with disabilities.

PI