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  3. Principal Mechanical Engineer
Commonwealth Fusion Systems logo

Principal Mechanical Engineer

Commonwealth Fusion Systems
Milpitas, Canada
Full Time
Posted April 15, 2026
$150k - $225k
Power Generation
~46 people viewed this recently
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Application opens on company website

Job Description

About Commonwealth Fusion Systems:

Key Responsibilities

• Lead System Design: Drive the design, integration, and validation of advanced R&D equipment for thin-film processing • Define Requirements: Establish system-level requirements and innovative design concepts that directly correlate mechanical precision to final thin-film product quality • Standardize Best Practices: Implement and maintain engineering workflows, and best practices using semiconductor standards as your guide • Lead Design Reviews: Conduct rigorous reviews for overall mechanical systems and sub-systems, emphasizing manufacturability (DFx) and best practices for mechanical design • Collaborate & Interface: Generate and maintain critical interfaces with cross-functional teams, including scientists, vacuum specialists, and electrical engineers • Project Accountability: Report on project milestones to stakeholders, ensuring delivery of on-time and in-spec outcomes • Mentor Talent: Coach engineering staff on technical delivery, procedural discipline, and professional development • Get Things Done: Act with speed to drive projects from concept through assembly, testing, and implementation

Requirements

• Ability to occasionally lift up to 50 lbs • Perform activities such as stooping, climbing, standing, or 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 or work required nights/weekends/on-call occasionally

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