Staff Mechanical Engineer

United States·MilpitasFull-timelead

OtherStaff Mechanical Engineer

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About Commonwealth Fusion Systems: Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy. Combining decades of research, top talent, and new technologies,

Technical Tools

OtherStaff Mechanical Engineer

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers and suppliers to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.

If that’s you and this role fits, we want to hear from you.

Join the power movement as a Staff Mechanical Engineer

We’re looking for a Staff Mechanical Engineer to join our R&D and equipment design team to help build the next generation of thin-film deposition technology. Serving as the "Second Chair" within our engineering group, you will be a high-impact technical leader who leads by example, solving highly complex, semi-ambiguous problems that influence the success of multiple teams.

You will be responsible for the end-to-end design, integration, and implementation of advanced thermal vacuum deposition systems and complex R&D machinery. Operating with near-complete independence, you will manage long-term assignments with loosely-defined outcomes, balancing expert-level technical execution with the operational discipline required to ship high-performance hardware.

Own System Execution:
- Drive the design, integration, and validation of advanced R&D equipment for thin-film processing, taking independent ownership of long-term projects and major mechanical sub-systems

Education:

Master’s degree in Mechanical Engineering or a related field (or equivalent industrial experience)

Experience:
- 10+ years of experience in the design and implementation of complex R&D systems or semiconductor manufacturing equipment

Semiconductor Background:
- Prior success building first-of-kind or experimental tools for semiconducto
- Standards Knowledge:
  - Familiarity with applying SEMI, ASME, ASTM, and other industry-standard mechanical codes to hardware designs
  - Motion Control:
    - Experience designing precision motion and motor-controlled systems within challenging environments

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

#LI-Onsite

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.