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Salary
$70k – $86k per year
Location
In office
Seniority
Middle · 3+ years exp
Employment
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Overview
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Commonwealth Fusion Systems is a commercial fusion energy company headquartered in Devens, Massachusetts, and founded in 2018. The firm specializes in the development of high-temperature superconducting magnets and compact tokamak devices, specifically the SPARC net-energy machine and the ARC commercial power plant. It operates through a strategic partnership with the Massachusetts Institute of Technology and focuses on scaling fusion technology to provide carbon-free, baseload power to global energy markets.

Join the power movement as a Contract Technician - Welding and Assembly

Join a cutting-edge team working to assemble, weld and test high precision electromechanical assemblies - critical to unlocking the future of clean energy. As a (TIG) Welder and Technician, you'll perform complex electromechanical assembly and in-house welding of large-scale metallic structures. This work will also include micro TIG welding on smaller component assemblies. This is a hands-on role in a fast-paced, highly collaborative environment, with a focus on quality, safety, and continuous improvement.

What you'll do:

  • Assemble electromechanical components per detailed work instructions, drawings, and wiring diagrams
  • Operate production, testing, and high-powered magnet equipment
  • Use calibrated mechanical tools (e.g., torque wrenches, micrometers, calipers)
  • Troubleshoot assembly issues and suggest process improvements
  • Perform precision soldering, wiring, epoxy potting, injection molding, and vacuum system work
  • Collaborate with engineers to refine processes and improve manufacturability
  • Weld metallic structures and tooling using GMAW, GTAW, SMAW, and other methods
  • Read and analyze blueprints, perform detailed measurements, and plan welding layouts
  • Use manual welding equipment to produce welds in various positions (flat, vertical, overhead)
  • Weld stainless steel and copper, including pressure-rated and critical applications
  • Participate in welding equipment qualifications and inspections
  • Provide design feedback on weld geometries and material choices

What we’re looking for:

  • High school diploma or equivalent
  • 3+ years of experience in electromechanical or electrical/mechanical assembly
  • 3+ years of welding experience with structural systems and tooling
  • Proficiency with a variety of hand tools, power tools, and measurement devices
  • Ability to read and interpret technical documents, blueprints, and schematics
  • Documented training or certifications in welding processes (e.g., GMAW, GTAW, SMAW)

Must-have requirements:

  • Ability to lift up to 50 lbs regularly
  • Perform activities such as stooping, typing, standing, and sitting for extended periods of time
  • Dedication to safety to mitigate industrial hazards that may include heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, and cryogenics
  • Willingness to travel occasionally or do required nights/weekends/on-call
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