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 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 over $2 billion in capital – more than any other fusion energy company in the U.S.

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 Molten Salt Engineer

ARC will be the first machine to produce electricity from fusion energy, serving as the cornerstone to a new industry. ARC will strongly leverage the work that’s been done for SPARC in developing HTS magnets and other key tokamak systems. However, because of its mission to deliver power to the grid, the ARC tokamak has a few systems not included on SPARC, such as the Blanket System, which uses FLiBe to breed tritium and capture heat. The Blanket System group within R&D is a growing team that is delivering key scientific and engineering results to push the technical readiness level of these new enabling technologies higher.

Salt chemistry is a known driver of corrosion, hydrogen speciation and transport, and salt behavior under irradiation. As the Blanket System team develops and builds larger systems, maintaining strong controls on our salt and its chemistry becomes increasingly important. The Blanket System team is looking for a Molten Salt Engineer to grow our in-house salt analytical capabilities to enable rigorously quantify and predict salt behavior. This position does not require extensive experience directly with molten salts, but will require experience in electrochemical systems and analytical chemistry.

The Blanket System team has a strong practice of carrying engineering risk where appropriate while attentively and aggressively managing safety risk, and is looking for an engineer who will actively contribute to this culture.

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.