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Commonwealth Fusion Systems is seeking a Staff Mechanical Engineer to join the R&D and equipment design team focused on next-generation thin-film deposition technology. This is a high-impact role at a leading fusion energy company that has raised $4 billion since 2018.
You will lead the design and implementation of advanced R&D equipment and complex machinery for thin-film processing. Key responsibilities include:
• Lead design and implementation of advanced R&D equipment for thin-film processing, with ownership of key mechanical modules and sub-systems
• Lead design reviews for key mechanical subsystems
• Generate and maintain interfaces with other engineering subsystems
• Report on and be accountable for project progress to stakeholders
• Work effectively within a multi-disciplinary team of top scientists and engineers
• Mentor engineering staff for effectiveness and delivery of on-time and in-spec outcomes
• Drive projects, consistently deliver, and act with speed
The role requires strong technical expertise, procedural discipline, and the ability to collaborate across engineering and technology functions to ensure safe, reliable, and high-performance equipment. You'll work in a fast-paced environment solving complex design problems while mentoring others.
Physical requirements include the ability to occasionally lift up to 50 lbs, perform activities such as stooping, climbing, standing, or sitting for extended periods, and dedication to safety in an industrial environment with potential hazards including heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics. Willingness to travel or work required nights/weekends/on-call occasionally is expected.
REQUIREMENTS:
• Bachelor's degree in Mechanical Engineering or related field (or equivalent industrial experience)
• 10+ years of experience with 8+ years specifically working as a staff mechanical design engineer or engineering team lead in a relevant context: design and implementation of R&D systems and manufacturing equipment
• Ability to conceive of novel solutions for complex engineering systems in challenging environments
• Expertise with 3D modeling; preferred experience with SolidWorks and NX
• Experience with COMSOL, ANSYS, or other FEA tools
• Ability to select and qualify vendors for components or subsystems
• Demonstrated ability to lead in either direct or matrix structures
• Strong verbal and written communication skills and dedication to high-quality documentation
BONUS QUALIFICATIONS:
• Prior success building first-of-kind or experimental tools for material science or semiconductor R&D
• Familiarity in applying Semi-S8, ASME, ACI, ASTM, and other mechanical standards to design solutions
• Experience with the operation of equipment in a manufacturing environment
