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Stellarex Energy

Boundary Plasma Physicist

Toronto, ON, Canada
Greater Toronto Area, Canada, Canada

Full-time

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Job details

Job type: Full-time
Apply by: Apr 25, 2027
Experience: · Experience: 5+ years of post-doctoral or senior research experience executing boundary plasma physics, edge modeling, or divertor integration programs.
Posting language: English
Posted: Oct 27, 2026

Original job description

About Stellarex Energy

At Stellarex Energy, we are building foundational technology for the clean energy transition by harnessing stellarator fusion to provide safe, reliable, and carbon-free baseload power. Turning this ambitious physics and engineering goal into industrial reality requires an exceptional, mission-driven team. If you are ready to solve one of humanity's greatest technological challenges and build transformative hardware from the ground up, we invite you to join our team in the Greater Toronto Area.

Role Overview

Stellarex Energy is seeking a highly technical Boundary Plasma Physicist to advance boundary plasma physics and divertor integration for our prototype stellarator facility in the Greater Toronto Area. Reporting to technical leadership of the project, you will serve as a specialist developing an integrated boundary plasma solution - balancing extreme heat loads and particle exhaust against core plasma confinement. In this critical role, you will utilize advanced boundary physics codes, validate models against operational stellarator experiments, and drive the design of power dispersal, erosion mitigation, and helium ash removal systems essential for steady-state fusion operation.

Core Responsibilities

· Boundary Physics & Divertor Integration: Perform boundary plasma modeling and divertor analysis to ensure an integrated, steady-state solution for energy and particle control in non-axisymmetric stellarator geometries.

· Power Dispersal & Thermal Load Management: Model edge power exhaust, detachment physics, and radiative divertor regimes to achieve wide power dispersal and keep peak heat fluxes within material engineering limits.

· Erosion Mitigation & Plasma-Material Interactions: Analyze sputtering, impurity transport, and erosion mechanisms to minimize divertor target degradation and prevent core plasma contamination.

· Helium Ash Exhaust & Particle Control: Optimize neutral gas dynamics, divertor pumping, and helium ash exhaust pathways to maintain steady-state fusion performance and fuel purity.

· Boundary Modeling & Experimental Validation: Deploy and advance state-of-the-art boundary physics modeling codes (e.g., EMC3-EIRENE, SOLPS, others), benchmarking computational predictions against results from leading international stellarator experiments.

Required Qualifications & Experience

· Education: Ph.D. in Plasma Physics, Nuclear Engineering, Applied Physics, or a closely related computational/energy engineering field.

· Experience: 5+ years of post-doctoral or senior research experience executing boundary plasma physics, edge modeling, or divertor integration programs.

· Boundary Codes & Modeling Mastery: Deep technical expertise in 3D edge transport and neutral modeling codes (such as EMC3-EIRENE, SOLPS, or equivalent boundary plasma suites).

· Stellarator Edge Physics: Demonstrated experience with non-axisymmetric boundary physics, island or helical divertor topologies, edge localized transport, and experimental validation.

· Cross-Functional Collaboration: Strong track record collaborating closely with plasma diagnostics, first-wall and divertor engineers.

Compensation & Benefits

Stellarex offers an industry-leading competitive base salary paired with meaningful company equity options, providing direct ownership in our long-term enterprise growth. We also offer comprehensive health and dental coverage, professional development support, and relocation assistance to the Greater Toronto Area.

How to Apply

Please submit your CV and cover letter to careers@stellarex.energy. Stellarex Energy is an equal opportunity employer committed to workforce diversity.

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More about this job

Responsibilities

Model boundary plasma behavior and integrate divertor solutions for steady-state energy and particle control in non-axisymmetric stellarator geometries. Analyze heat exhaust, detachment, erosion, impurity transport, neutral dynamics, and helium ash removal, while validating modeling codes against experimental results.

Requirements

Requires a Ph.D. in plasma physics, nuclear engineering, applied physics, or a closely related field, plus at least five years of postdoctoral or senior research experience. Candidates need deep expertise in 3D edge transport and neutral modeling codes, stellarator boundary physics, experimental validation, and collaboration with diagnostics and divertor engineering teams.

Skills

Boundary Plasma Physics
Divertor Integration
3D Edge Transport Modeling
Neutral Modeling
EMC3-EIRENE
SOLPS
Stellarator Edge Physics
Non-Axisymmetric Boundary Physics
Island and Helical Divertor Topologies
Edge-Localized Transport
Experimental Validation
Power Exhaust Modeling
Detachment Physics
Plasma-Material Interactions
Impurity Transport
Helium Ash Exhaust

Benefits

Company Equity Options
Health Coverage
Dental Coverage
Professional Development Support
Relocation Assistance

Visa sponsorship

Not detected in the job text

Keywords

Stellarator Fusion
Boundary Plasma Physics
Divertor Integration
Non-Axisymmetric Geometry
EMC3-EIRENE
SOLPS
3D Edge Transport
Neutral Modeling
Edge Power Exhaust
Detachment Physics
Radiative Divertor Regimes
Heat Flux Management
Sputtering
Impurity Transport
Erosion Mitigation
Plasma-Material Interactions
Neutral Gas Dynamics
Divertor Pumping
Helium Ash Exhaust
Particle Control
Experimental Validation
Stellarator Experiments
Core Plasma Confinement
Steady-State Fusion
Plasma Diagnostics
First-Wall Engineering

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