Senior Multiphysics Modeler
Commonwealth Fusion SystemsDevens, Massachusetts
Full Time
Posted December 2, 2025
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Job Description
The Senior Multiphysics Modeler will develop simulation tools and workflows to support the design and integration of fuel cycle systems for a pioneering fusion power plant, applying first-principles modeling of heat and mass transport within a multidisciplinary engineering team.
Key Responsibilities
- Develop simulation toolkits and workflows integrating multiphysics simulations with industrial process models for fuel cycle systems.
- Collaborate with the tritium program and process engineering team to develop a fuel cycle model for the fusion power plant ARC.
- Apply first-principles approaches to solve complex engineering problems related to heat and mass transport modeling.
- Optimize device performance by tuning material parameters and performing non-dimensional analysis and integrated simulations.
- Create tools and teach team members to independently utilize simulation models and workflows.
Requirements
- A degree in a relevant engineering or science discipline.
- Experience in process modeling and programming.
- Demonstrated ability to apply a first principles approach in solving complex engineering problems.
- Experience conducting cost-benefit analyses to evaluate the economics of proposed solutions.
- Proven success working on engineering projects in multi-disciplinary teams to generate effective solutions to complex problems.
- Expertise in heat and mass transport modeling.
- Ability to develop simulation toolkits and workflows that integrate first-principles multiphysics simulations with industrial process models.
- Experience supporting technology development and subsystem integration for key fuel cycle systems.
- Ability to optimize devices by tuning material parameters.
- Appreciation for simplicity, including non-dimensional analysis and rigorous integrated simulations.
- Ability to teach and build tools that others can use independently.
Benefits & Perks
Work schedule: Hybrid work environment
Work environment perks: Fast-paced environment, diverse perspectives, mission-driven culture
Additional benefits: Equal opportunity employer, compliance with export control laws
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