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Be ready to walk through high-stakes mechanical design tradeoffs, failure diagnosis, and how you would specify or modify components under performance and regulatory constraints for fusion hardware.
Strong fit if you lead mechanical design for complex energy or hardware systems and want principal-level ownership at a commercial fusion company in Milpitas.
As Principal Mechanical Engineer at Cfsenergy, expect ownership of fusion-related mechanical systems: interpret drawings, design and evaluate hardware, specify components, debug failures, and align procedures with peer engineers.
No. The listing is on-site in Milpitas, CA (remote flag is 0).
Source news ties the brand to Commonwealth Fusion Systems and commercial fusion power development.
Blueprint literacy, system design/evaluation, component specification, failure investigation, and clear technical collaboration.
Public-domain labor data — prepare examples for 2–3 of these.
Principal Mechanical Engineer - VacuumCfsenergyMilpitas, CAFull Time, No Remote About This Position We are seeking a Principal Mechanical Engineer to join our R&D and equipment design team at Commonwealth Fusion Systems (CFS). As a key member of the team, you will be responsible for designing, integrating, and implementing advanced thermal vacuum equipment and research machinery. You will work closely with cross-functional teams to develop innovative solutions in a fast-paced environment. Responsibilities End-to-end design, integration, and implementation of advanced thermal vacuum equipment and R&D machinery Drive the development of innovative architecture while maintaining procedural discipline for high-performance hardware Solve complex thermal-mechanical problems in vacuum environments Mentor junior engineers and contribute to a collaborative team environment Who We're Looking For We are looking for a technical expert with experience in mechanical engineering, particularly in the design of advanced thermal vacuum equipment. You should have a proven track record of delivering high-quality projects on time and be able to work effectively in a fast-paced, collaborative environment. About the Company Commonwealth Fusion Systems is dedicated to accelerating the transition to fusion energy. Since 2018, we've raised $4 billion, making us the leading fusion company globally. Our mission is to design and build commercially viable fusion power plants while collaborating with policymakers, suppliers, and other stakeholders to shape the future of the energy industry. How to Apply To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there. If that’s you and this role fits, we want to hear from you. Join the power movement as a Principal Mechanical Engineer. To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.
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