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Principal Mechanical Engineer - Web Handling

Commonwealth Fusion SystemsMilpitas, CA

$187,000–270,000/yr

Posted Oct 14, 2026

What you’d do

Lead the architecture of next-generation roll-to-roll web handling equipment, including tension systems, accumulators, and winders, and research new winding technologies. Translate R&D objectives into engineering designs across mechanical, electrical, and controls teams, with physical demands like occasional 50 lb lifting. Found on the employer's careers page on Oct 18, 2026. Apply through the link.

You’ll need

  • Principal-level mechanical engineering experience
  • Web handling and roll-to-roll system expertise
  • Dynamic modeling and web physics analysis
  • Cross-functional leadership across mechanical, electrical, controls
  • Occasional lifting up to 50 lbs

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