Principal Mechanical Engineer
Commonwealth Fusion SystemsMilpitas, Canada
Full Time
Posted April 15, 2026
$150k - $225k
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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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