Staff Multiphysics Modeler
Commonwealth Fusion SystemsDevens, MA
Full Time
Posted July 16, 2026
$130k - $200k
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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 10+ years in chemical engineering, mechanical engineering, physics, materials science, physical chemistry or similar
- 10+ years experience modeling process systems
- 10+ years experience in computer programming
- Expertise with transport phenomena and chemical processes in gasses including demonstrated experience building integrated process models
- Proven experience as an “expert” to evangelizing solutions and working across teams for shared solutions
- Experience building and 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
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