TE Magnetics is the high temperature superconducing (HTS) technology division of Tokamak Energy. Born from our mission to deliver fusion energy, we have developed world-leading HTS technology, protected by more than 250 patents and supported by exceptional scientific, engineering, and commercial expertise.

HTS is a transformative technology for a wide range of industries, enabling magnet and power distribution systems that are more powerful, lighter, compact, and highly efficient—transforming industries, creating new opportunities, and accelerating innovation.

TE Magnetics, which is already generating multi-million-pound revenues, is developing robust, high-quality HTS solutions across fast-growing markets including fusion, power systems, analytical science, propulsion, and defence. We are the Magnet Systems Partner for the UK Government's STEP Fusion programme, under a £70 million contract running to 2029, working with UK Fusion Energy to deliver HTS magnet systems for the STEP prototype power plant, while also contributing to tokamak systems and plasma integration.

 Founded in 2009 as a spin-out from the UK Atomic Energy Authority, Tokamak Energy is headquartered in Oxfordshire, with subsidiaries in the United States and Japan. Today, we employ over 300 people and have secured more than £280 million in investment.

Work on power systems that don’t yet exist

At Tokamak Energy, we’re redefining how power is generated, controlled, and delivered using high-temperature superconducting (HTS) technology.

Within our TE Magnetics division, we’re moving beyond traditional high-voltage approaches—developing ultra-high current, low-voltage power architectures that are lighter, more efficient, and fundamentally different from anything in today’s power systems.

We’re now hiring a Senior Power Electronics Engineer to play a key role in our SuperDC programme—a first-of-a-kind initiative focused on next-generation power conversion.

This is a hands-on, technically deep role for someone who wants to own a problem end-to-end and turn bold ideas into working hardware.

What you’ll be doing

• Take ownership of power conversion subsystems from concept through to demonstrator
• Design and develop advanced power electronics systems (DC-DC converters, multi-stage architectures, gate drive systems)
• Build and run high-power experimental test programmes
• Apply first-principles engineering to solve novel challenges
• Collaborate across HTS, systems, controls, and mechanical engineering teams
• Translate experimental learnings into robust, real-world solutions

Why this role is different

• Work on first-of-a-kind systems, not incremental improvements
• Own a critical subsystem, not just a small part of a large team
• Operate in a high-autonomy environment where engineers drive decisions
• Help shape the future of fusion and next-generation power systems