Manager, Materials Mechanical Testing
Listed on 2026-09-13
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Engineering
Materials Engineering, 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.
Manager, Materials Mechanical TestingThe Materials and Processing (M&P) Department at CFS supports design engineers, supply chain, and manufacturing by selecting materials, unambiguously defining materials and processing routes, validating and measuring those materials and their properties, and conducting R&D to develop new materials and processes to enable fusion power deployment. M&P at CFS is organized around three primary thrusts: engineering, test and characterization, and development programs.
The work is undertaken in support of delivering SPARC, the net energy tokamak under construction in Devens, MA, and ultimately in designing the ARC fusion power plant. These devices pose unique materials challenges including neutron fluxes produced by deuterium‑tritium fusion, high heat loads, molten salt coolant systems, complex component topologies, high magnetic fields, and high mechanical loading in cryogenic conditions.
To support this mission, the CFS Materials Test and Characterization team in M&P is seeking a sub‑team lead for the growing group. The manager of the materials mechanical testing team will mentor, coordinate, and grow a team of 2‑5 materials test engineers in addition to serving as subject matter expert in mechanical testing of materials and structural testing of sub‑components in CFS projects.
Responsibilities- Mentor, coordinate, and grow a team of 2‑5 materials test engineers.
- Serve as subject matter expert in mechanical testing of materials and structural testing of sub‑components in CFS projects.
Salary range: 110, USD, yearly.
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