Power Electronics Engineer

Tokamak energy; Abingdon; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading fusion energy company in the UK is seeking a production leader to drive improvements in their manufacturing structures. In this role, you will be responsible for designing and prototyping power-electronics solutions while ensuring efficient operational processes. Ideal candidates will have experience in power-electronics design, strong testing skills, and the ability to work independently. This position offers a blend of onsite and home working options, alongside comprehensive benefits including a performance-related bonus and share options.

Benefits

25 days holiday plus bank holidays

Discretionary festive break

Performance-related bonus

Share options scheme

Pension scheme

Group life insurance

Health cash plan

Investment in training and development

Qualifications

• Experience in power-electronics design with hands-on prototyping.
• Strong practical test experience in lab instrumentation.
• Comfortable with system-level DC power concepts.

Responsibilities

• Design, prototype, and validate power-electronics solutions.
• Develop converter control algorithms and testing methodologies.
• Lead detailed hardware testing and iterate designs.

Skills

Power-electronics design

Hands-on prototyping

Lab instrumentation

Thermal and EMC testing

Fault injection

Job description

Working arrangements

Please note this role does offer hybrid working, our model sets out a minimum 60% onsite / 40% home working split.

Overview

TE Magnetics is a new business division within Tokamak Energy. We want to usher in the HTS era. This is a production leadership role within the MBU focused on developing and improving our production structures to manage day-to-day activities across the manufacturing section of the MBU. We recognise we are in our infancy, but we are ambitious have big plans to grow fast and make a global impact. We need a production leader to help us shape our processes to ensure we operate efficiently and effectively where each contributing member is maximising the use of their key skills.

Join Tokamak Energy to design and prototype the power‑electronics that will enable our next‑generation power products. You’ll convert systems requirements into converters and PDUs, run hands‑on lab testing, and help deliver demonstrators that prove performance and reliability. Ideal for engineers who enjoy turning challenging specs into working hardware.

Responsibilities

• Take system specifications and independently design, prototype and validate power‑electronics solutions (converters, power stages, control, filtering and protection).
• Develop converter control algorithms, stability analysis and EMI/thermal mitigation strategies; turn designs into reliable prototypes and test artefacts.
• Lead detailed hardware testing (efficiency, thermal, EMC, fault‑insertion) including critical component characterisation; iterate designs to meet system acceptance criteria.
• Collaborate closely with the Senior Electrical Systems Engineer to align designs with roadmap, safety and lifecycle requirements.
• Define manufacturing‑ready BOMs, drawings and handover artefacts for pilot builds.
• Support commissioning and lab integration, and mentor technicians during prototype builds and tests.

Requirements

• Experience in power‑electronics design and hands‑on prototyping (converter topologies, power stages, control).
• Strong practical test experience: lab instrumentation, thermal and EMC testing, and fault injection.
• Comfortable with system‑level DC power concepts and protection approaches.
• Able to work independently from spec to prototype and to document results clearly.

Nice‑to‑have

• Familiarity with modern wide‑bandgap devices (SiC/GaN), and DC systems used in datacentres/telecom.

Attributes

• Comfortable working with multiple engineering disciplines, and able to translate system‑level requirements into specifications.
• Able to manage ambiguity and iteration, adapting to new information to ultimately de‑risk the end‑product.
• Capable of working independently and steering technical priorities within the inter‑disciplinary project team.
• Skilled in technical communication, documentation, prototype development, and hands‑on lab experience.
• Willing to tackle operational challenges head‑on, with the motivation and skills to overcome these when they arise.

Benefits

• Salary dependent on skills and experience and will be discussed from the outset.
• 25 days holiday plus bank holidays.
• Discretionary 3‑day festive break depending on business needs.
• Eligible for discretionary performance related bonus.
• Share options scheme.
• Pension scheme.
• Financial benefits – including group life insurance, critical illness, health cash plan and discount scheme.
• Innovation and Merit bonuses.
• Investment in training and development to support career progression.
• Opportunity to work on and contribute to world class innovation.

Company background

Tokamak Energy is a leading global commercial fusion energy company based near Oxford. We are a world leader in two transformative technologies: the compact spherical tokamak and high temperature superconducting (HTS) magnets. One company, with licensable technology for commercialising clean, secure and affordable fusion energy and enabling new levels of performance in HTS applications that change the world in which we live today.

TE Magnetics, in collaboration with key manufacturing partners, is focussed on becoming the leading supplier of HTS technology to multiple markets. Born from a world class fusion energy mission, we are driven to opening new fields of performance.

We provide magnet systems for other fusion companies to accelerate commercial development, as well as to address exciting new applications for HTS, including renewable energy, medicine, science and propulsion in water, land, air and space.

Tokamak Energy, founded in 2009 as a spin‑off from UK Atomic Energy Authority, currently employs a growing team of over 260 people with experts from the UK and around the world. It combines world leading scientific, engineering, industrial and commercial capabilities. The company has more than 75 families of patent applications and has raised $335 million, comprising $275m from private investors and $60m from the UK and U.S. governments. Our U.S. subsidiary, Tokamak Energy Inc, was established in 2019.

Come and be a part of a dynamic and innovative team who are striving to provide a solution to one of humanity’s greatest challenges: clean and sustainable fusion energy for all.

Important information for candidates

Pre‑employment screening

Please note that the appointment of the successful candidate will be subject to standard pre‑employment screening, as applicable to the post. This will include right‑to‑work, proof of identity and references.

Data privacy

Please note that any personal data submitted to Tokamak Energy as part of the job application process will be processed in accordance with the GDPR and related UK data protection legislation, for more information regarding GDPR please see: https://www.gov.uk/government/publications/guide-to-the-general-data-protection-regulation

Equality of opportunity

Entry into employment with the Tokamak Energy and progression within employment will be determined only by personal merit and the application of criteria which are related to the duties of each post and the relevant salary structure. In all cases, ability to perform the job will be the primary consideration. No applicant or member of staff shall be discriminated against because of age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.

We’re committed to building an inclusive and accessible recruitment experience.

If you have a disability or require any reasonable adjustments to support you through the application or interview process, please let us know. We’re happy to make the necessary arrangements to ensure you can perform at your best.