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Join us in our mission to commercialize fusion energy

About Type One EnergyType One Energy Group is mission-driven to provide sustainable, affordable fusion power to the world. Established in 2019 and venture-backed in 2023, the company is led by a team of globally recognized fusion scientists with a strong track record of building state‑of‑the‑art stellarator fusion machines, together with veteran business leaders experienced in scaling companies and commercializing energy technologies.

If you are searching for the best new ideas and share our vision, join us as a Computational Physicist-MHD Reconstruction.

This is what you need to know:

Location: Knoxville TN, Madison WI or Vancouver BC

Salary: Highly Competitive Plus Benefits

Contract: Permanent, full time

Reporting to: VP Stellarator Optimization

We are seeking a Computational Physicist to develop and advance an integrated, multi‑fidelity MHD–Edge–Divertor modeling framework that supports optimization, stability analysis, equilibrium reconstruction, synthetic diagnostics, and real‑time plasma control.

The successful candidate will contribute to the development of high‑performance simulation tools and predictive modeling capabilities that enable deeper understanding of stellarator plasma behavior and inform key engineering and physics decisions.

This role is critical to the success of our Infinity Two stellarator technology, with direct impact on system design, operational control strategies, and scenario development. Working at the intersection of computational physics, plasma science, and fusion engineering, the individual will help shape the performance and evolution of both Infinity One and Infinity Two programs, accelerating the path toward commercially viable fusion energy.

This role delivers the core physics‑based modeling and control capability enabling between‑shot analysis, real‑time plasma optimization, AI‑enhanced physics validation, and integrated design of diagnostics and control systems for next‑generation stellarators.

• Critical Priority (Infinity Two) –Real‑Time Equilibrium Reconstruction
• Develop a real‑time 3‑D equilibrium reconstruction solution for stellarator plasmas.
• Integrate accelerated equilibrium solvers with diagnostics, actuators, and control systems.
• Support MHD and divertor heat‑flux and particle control.
• Provide input for high fidelity models for physics validation.
• Physics‑Informed&Proxy Models
  • Workwith engineering and physics to create high‑quality accelerated (proxy) models for:
  • Core MHD + edge/divertor coupling
  • Heat and particle flux (SOL, divertor, pumping)
  • Neutron fluence
  • Energetic particles
  • Combined MHD and neoclassical bootstrap current
• SyntheticDiagnostics, Hardware&Controls
  • Implement synthetic diagnostics (magnetics, spectroscopy, bolometry, pressure, fueling, input power, neutron diagnostics) with supportfrom engineers and diagnosticians.
  • Support diagnostic and control system design, including magnetic sensors, spectroscopy and fluctuation diagnostics.
  • Work with CODAC to define data structures and access for real‑time and offline analysis.

• Familiarity with equilibrium reconstruction tools for magnetic fusion.
• Familiaritywith existing reconstruction tools for stellarators is highly desired.
• Working in a shared development workspace: Git, github, gitlab, or some other file management system
• Numerical modeling with one or more of the following: Python, C/C++, Fortran
• Familiarity with *nix, High‑Performance and/or GPU computing: Bash, Slurm, MPI, OpenMP, JAX, Cuda
• Familiarity with real‑time control systems for fusion devices.
• Handling large data sets.
• Working with engineers to reduce data set sizes.
• Generating reports and shared documents with Microsoft Office products (Word, Excel, PowerPoint) and various online collaborative tools (Confluence.

In addition to a basic salary and yearly bonus, you will also get

• A hybrid work policy
• Stock options
• Relocation allowance
• Insurance plans
• Retirement options
• And many more great voluntary benefits

Type One Energy applies proven advanced manufacturing methods, modern computational physics and high‑field superconducting magnets to develop its optimized stellarator fusion energy system.

Our FusionDirect development program pursues the lowest‑risk, shortest‑schedule path to a fusion power plant over the coming decade, using a partner‑intensive and capital‑efficient strategy.

Type One Energy is committed to community engagement in the development and deployment of its clean energy technology. For more information, visit or follow us on LinkedIn.

Type One Energy is a Global, U.S.-based company that develops and utilizes technologies subject to U.S. export control and trade compliance regulations. Certain positions may require access to controlled technologies, technical data, software, or other information regulated by U.S. Export Control Laws. For positions involving access to export‑controlled technology or information, the Company may be required to determine whether any government authorization or license is needed before such access can be provided. Any offer of employment for such positions may be contingent upon the Company's ability to comply with applicable U.S. Export Control Laws and obtain any required government authorizations.

For positions based in the United States, Type One Energy participates in E-Verify and verifies the identity and employment authorization of newly hired employees in accordance with applicable federal law. Employees hired to work in the United States will be required to complete the Form I‑9 employment eligibility verification process upon hire.

Type One Energy is an equal opportunity employer. Employment decisions are made based on qualifications, merit, business needs, and compliance with applicable laws and regulations.

Type One Energy collects personal information from applicants for recruitment, hiring, and related business purposes. We process applicant information in accordance with applicable privacy and data protection laws and take reasonable measures to protect the confidentiality and security of personal information. By applying for a position, you acknowledge that your personal information may be collected, used, stored, transferred, and disclosed as necessary to evaluate your candidacy, conduct pre‑employment screenings where permitted by law, and comply with legal and regulatory requirements.