Magnet Engineer

The Stellarex Energy Magnet Engineer drives the design, fabrication, testing and integration of high-field superconducting magnetic coil systems for the company’s prototype stellarator facility. Stellarex Energy is building foundational technology for the clean energy transition by harnessing stellarator fusion to provide safe, reliable and carbon-free baseload power, and the role sits within its team in the Greater Toronto Area.

Reporting to the technical leadership of the project, the Stellarex Energy Magnet Engineer serves as a technical authority for complex 3D non-axisymmetric high-temperature superconductor (HTS) and low-temperature superconductor (LTS) magnet coils, advanced cryogenic cooling networks and high-precision power electronics and power supplies. The role bridges computational physics flux surface requirements into robust, manufacturable magnet hardware.

Key Responsibilities

• Play a major role in the mechanical, electromagnetic and structural design of high-field 3D non-axisymmetric HTS and LTS superconducting coils, winding topologies, structural supports and coil casings for prototype stellarator devices
• Drive the design and integration of cryogenic cooling networks, including cryostats, forced-flow helium loops and conduction-cooled structures, to ensure thermal stability and quench prevention during steady-state operations
• Oversee the specification, procurement and control system integration of high-current, low-ripple power supplies, quench protection circuits and energy extraction systems
• Manage external industrial suppliers, conductor manufacturers and precision winding fabricators, executing factory acceptance testing (FAT) and cold-testing validation
• Collaborate closely with plasma physicists, 3D CAD integration engineers and plant infrastructure teams to resolve mechanical space envelopes, Lorentz force reaction structures and assembly sequences

Requirements

Essential:

• Master’s degree in electrical engineering, mechanical engineering, applied physics or a related deep-tech discipline
• 5+ years executing complex magnet engineering programmes, superconducting system fabrication, or major high-field magnet facilities
• Proven expertise in HTS and LTS conductors, coil winding technologies, insulation systems and electromagnetic force management
• Deep technical knowledge of cryogenic cooling systems (liquid and gaseous helium), quench detection and protection, and high-current power supply design
• Demonstrated track record executing engineering workflows, managing vendor technical requirements, quality assurance protocols and phase-gate design reviews

Desirable:

• PhD in electrical engineering, mechanical engineering, applied physics or a related deep-tech discipline (listed as preferred)