Power Electronics Engineer

About TE Magnetics

TE Magnetics is the high temperature superconducting (HTS) technology division of Tokamak Energy. We are dedicated to delivering fusion energy and have developed world-leading HTS technology, protected by over 250 patents and supported by exceptional scientific, engineering, and commercial expertise. HTS is a transformative technology for numerous industries, enabling more powerful, lighter, compact, and highly efficient magnet and power distribution systems. TE Magnetics is already generating multi-million-pound revenues and is developing robust, high-quality HTS solutions for 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, working on a £70 million contract until 2029 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. We currently employ over 300 people and have secured more than £280 million in investment.

The Role

At Tokamak Energy, we are pioneering the future of clean energy through high-temperature superconducting (HTS) technology. Our TE Magnetics division is revolutionizing power system design by moving beyond traditional high-voltage paradigms to ultra-high-current, low-voltage architectures. This is a unique opportunity to work on genuinely first-of-a-kind systems and contribute to bringing them from concept to reality. We are seeking a Senior Power Electronics Engineer to lead the development of power conversion systems within cutting-edge programs like SuperDC. This is a hands-on engineering role involving the design, construction, testing, and iteration of novel power electronics solutions, transforming experimental concepts into deployable systems.

What You'll Be Doing

• Designing power electronics systems, including DC-DC converters, power supply units (PSUs), and multi-stage architectures.
• Taking full ownership of subsystems from initial concept through to demonstrator phase.
• Developing and executing high-power testing programs.
• Collaborating closely with multidisciplinary teams, including HTS, systems, control, and mechanical engineering.
• Applying fundamental principles to solve complex engineering challenges.
• Translating experimental findings into robust, product-ready solutions.

Requirements

• Significant experience in the design, development, and testing of power electronics.
• A strong background in power conversion, including DC-DC converters and control systems.
• Demonstrated ability to work independently and manage technical problems from start to finish.
• Experience within industrial, high-power, or complex engineering environments.
• Excellent communication skills and a proven ability to collaborate effectively across different teams.

Benefits

• This role offers hybrid working, with a model of at least 60% onsite and 40% remote work. Part-time working or job-sharing arrangements will be considered on an individual basis.
• 25 days of annual leave, in addition to bank holidays and three discretionary festive days to be used between Christmas and New Year.
• Company pension scheme.
• Eligibility for the company share option scheme.
• Discretionary company bonus scheme, dependent on performance.
• A comprehensive range of financial benefits, including death in service and critical illness cover.
• Cycle to work scheme.

Additional Information

No terminology in this advertisement or job description is intended to discriminate based on age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation. All candidates will be assessed solely on their merits, qualifications, and abilities relevant to the job duties. Pre-employment screening, including right-to-work, identity verification, and reference checks, will be conducted for the successful candidate as applicable. Personal data submitted during the application process will be processed in accordance with GDPR and UK data protection legislation. Entry into employment and career progression at Tokamak Energy are based exclusively on personal merit and criteria related to job duties and salary structures. The ability to perform the job will be the primary consideration. No applicant or staff member will be discriminated against due to age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.