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  3. Senior Multiphysics Modeler
CF

Senior Multiphysics Modeler

Commonwealth Fusion Systems
Devens, MA
Full Time
Posted July 9, 2026
$110k - $185k
Power Generation
~60 people viewed this recently
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Job Description

About Commonwealth Fusion Systems:

Key Responsibilities

  • Lead the development of an integrated power plant fuel cycle model
  • Develop models for unit operations and incorporate multi-effects in components
  • Develop simulation tools to enable targeted R&D for key fuel cycle technologies
  • Own the fuel cycle simulation tools and models
  • Validate models and identify key R&D requirements to enable validation where there are currently gaps in the literature
  • Collaborate cross-functionally with both internal and external experts to ensure fuel cycle models are feasible, economic and state-of-the-art
  • Develop processes and layouts for fueling subsystem blocks that are communicated through standard engineering documents
  • Generate detailed work plans and define milestones, integrated with R&D, to deliver validated models
  • Provide guidance to colleagues for use of developed modeling tools and outputs
  • Identify emerging trends and opportunities and influence CFSs’s fuel cycle modeling strategy

Requirements

  • Master’s degree or similar experience with 7+ years in chemical engineering, mechanical engineering, physics, materials science, physical chemistry or similar
  • 5+ years experience modeling process systems
  • 5+ years experience in computer programming
  • Knowledge of transport phenomena and chemical processes in gasses
  • Experience building integrated process models
  • Process engineering and systems integration
  • Experience managing large data sets
  • Understanding of scalable simulations
  • Track record in version control
  • Data reduction and results analysis
  • Ability to occasionally lift up to 50 lbs
  • Perform activities such as sitting, typing, standing, stooping, or climbing 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

Ready to Apply?

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