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Commonwealth Fusion Systems

Molten Salt Engineer

  • Confirmed live in the last 24 hours
  • $70k–$120k
  • Mid level
  • Full-time
  • On-site · Devens, MA
  • Entry level
  • Added 1 month ago

About this role

Commonwealth Fusion Systems seeks a Staff Multiphysics Modeler to develop simulation tools and fuel cycle models for ARC, their commercial fusion power plant. You'll integrate first-principles multiphysics simulations with industrial process models to support technology development and subsystem integration for the tritium and fuel cycle systems.

What you'll do

  • Develop fuel cycle models and simulation toolkits for ARC fusion power plant
  • Integrate multiphysics simulations with industrial process models
  • Conduct heat and mass transport modeling for fuel cycle systems
  • Support technology development and subsystem integration efforts
  • Collaborate with tritium program and process engineering teams
  • Create tools and workflows for independent use by other engineers

What they're looking for

  • Heat and mass transport modeling
  • Multiphysics simulation and modeling
  • Process modeling and simulation
  • Programming and software development
  • First-principles engineering analysis
  • Cost-benefit analysis and economics evaluation
  • Non-dimensional analysis
  • Technical documentation and knowledge transfer
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Commonwealth Fusion Systems

Commonwealth Fusion Systems develops next-generation fusion power technology, including high-temperature superconducting magnets and the SPARC fusion power demonstrator. The company is hiring R&D engineers, test engineers, mechanical engineers, and metrology specialists to advance fusion energy development through rigorous testing, innovative fluid systems design, manufacturing optimization, and precision measurement of complex reactor components.

Industry
Technology & Software
View all jobs at Commonwealth Fusion Systems

Likely interview questions

  • Describe a complex multiphysics problem you've modeled from first principles—what approach did you take and how did you validate it?
  • Walk us through your experience integrating simulation tools across different physics domains or software platforms.