Senior Manager, Mechanical Engineering — Vacuum Vessel

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, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading 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 Senior Manager, Mechanical Engineering

CFS is looking for a creative, experienced mechanical engineering manager to lead the design and delivery of the ARC vacuum vessel. Commonwealth Fusion Systems is currently designing the ARC fusion power plant. Within the ARC plant, the ARC tokamak consists of many large mechanical structures that support the large loads and extreme conditions of the fusion plasma. One of the newest and most interconnected components in ARC will be the vacuum vessel, a hundred-ton mechanical structure that surrounds the fusion plasma. This structure must withstand extreme heat fluxes on the plasma-facing side and effectively remove this heat via flowing molten salt on the other side of the vessel. This vessel must also be replaceable via a remote handling system during regular plant maintenance cycles. Come lead the design of a critical portion of the world's first fusion power plant!

Lead a team of mechanical engineers to plan and deliver on the ARC vacuum vessel and connected systems

Oversee the full design lifecycle, from initial concept and CAD modeling to hardware procurement and assembly

Interface the design of the vacuum vessel with many other systems in the ARC plant, coordinating with other engineering teams to ensure the best overall design for the product

Provide hands-on technical leadership to solve complex, multi-disciplinary design challenges and manage risks in new environments and with novel materials

Work with the supply chain and materials and processing teams to identify and develop suppliers for the vacuum vessel

Proactively manage schedule and budget to deliver a critical component to the ARC fusion power plant

Manage all aspects of the group's talent, including hiring, training, and setting clear performance expectations

Promote a culture of resilience and grit, ensuring the team consistently follows through on assignments despite technical hurdles

Bachelors Degree in Mechanical Engineering or a closely related degree

10+ years experience in mechanical engineering or closely related fields

Experience working on a multi-disciplinary engineering project

Experience designing and delivering large metallic structures

Experience with structural analysis

Experience with fabrication of complex large structures

Experience working in dynamic R&D environments, including novel materials and locations

Broad knowledge of engineering sufficient to interact with multi-disciplinary engineering teams

Knowledge of finite element structural analysis

Knowledge of fluid cooling of mechanical structures

Ability to adapt to a rapidly changing environment

Experience designing systems operating at high temperature (600C / 1100F)

Perform activities such as stooping and sitting for extended periods of time

Willingness to occasionally travel or work required nights/weekends/on-call

Dedication to safety to mitigate hazards that may include heat, cold, noise, fumes, strong magnets, lead, high voltage, and cryogenics

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