Staff Multiphysics Modeler

Devens, MASenior10+ years

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.

Join the power movement as a Staff Multiphysics Modeler

The Staff Multiphysics Modeler will work closely with the CFS tritium program and process engineering team to develop a fuel cycle model for the world's first fusion power plant, ARC, located in Chesterfield County, Virginia.

The Staff Multiphysics Modeler will develop simulation toolkits and workflows that integrate first-principles multiphysics simulations with industrial process models to support technology development and subsystem integration for key fuel cycle systems, supported by the CFS fuel team to understand system requirements.

The ideal candidate is an expert in heat and mass transport modeling, with an appreciation for simplicity and drive to build. This individual knows the power of optimizing devices by tuning material parameters, and appreciates a simple non-dimensional analysis and rigorous integrated simulations as the problem space requires. The candidate enjoys teaching and building tools that others can use independently.

Applicants must have a degree in a relevant engineering or science discipline as well as experience in process modeling and programming. Applicants must have a demonstrated ability to apply a first principles approach in solving complex engineering problems and experience conducting cost-benefit to evaluate the economics of proposed solutions. Applicants must have demonstrated success working on engineering projects in multi-disciplinary teams generating effective solutions to complex problems.

What you'll do:

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

What we're looking for:

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

Bonus points for:

Experience with Python and/or Matlab

Experience with multiphysics tools such as Comsol

Exposure to process simulators like HYSYS

Use of engineering management tools

Confluence/JIRA and remote collaboration tools

Fusion energy experience

Chemical engineering

Atom and molecular mass transport

Must-have requirements:

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

#LI-Onsite

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

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Staff Multiphysics Modeler

What you'll do:

What we're looking for:

Bonus points for:

Must-have requirements:

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