Electrical Engineer MBU

Number of employees


Milton, Abingdon, United Kingdom

Posted on: 2024-03-22

Category: renewables

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Employment type:

Full time

Experience required:



Salary not provided

About the company:

The world needs a clean and reliable source of base-load energy to develop sustainably into the future. That’s what Tokamak Energy is striving to achieve.

Tokamak Energy is a private company accelerating the development of fusion power.

Fusion – the energy source that powers the sun – is globally accepted as the best way to generate plentiful, safe, secure and clean energy. The tokamak is the most heavily researched and best understood of all the different paths to fusion.

It is now acknowledged that the spherical tokamak design offers the smallest and most cost-effective solution. This is our solution. Yet there are many complex engineering challenges that need to be overcome for demonstration and commercialisation of this technology.

Our team of world-class fusion scientists and magnet engineers is tackling these challenges to develop efficient and affordable fusion power. Our unique approach is centred on rapid innovation using the latest materials and technology – but building on decades of scientific research and experience. This strategy gives us – and the world – a faster way to fusion.

Once fusion electricity is achieved, our scalable technology could be rolled out across the world as a solution to one of humanity’s greatest challenges: clean and sustainable energy for all.

Company Background

What if there was a limitless, safe, clean, low-cost energy source, providing much needed global energy security?  What if that energy source could also help reduce climate change?  We believe that’s fusion energy.  Tokamak Energy is a leading global commercial fusion energy company based near Oxford, UK.  We have an unrivalled track record designing and operating spherical tokamaks; the optimal route to commercial fusion energy. 

In addition to fusion energy, Tokamak Energy is recognised as the leader in High Temperature Superconductor (HTS) magnet, design, numerical modelling, and prototyping.  Our dedicated HTS magnet team, in collaboration with key manufacturing partners, is focussed on becoming the leading supplier of HTS magnets to multiple markets. 

The company, founded in 2009 as a spin-off from the UK’s Culham Centre for Fusion Energy, currently employs a growing team of over 250 people with experts from the UK and around the world.  It combines world leading scientific, engineering, industrial and commercial capabilities.  The company has 70 families of patent applications and has raised $250 million, comprising $200m from private investors and $50m from the UK and US governments.  Our US 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 energy for all.


Overview of the role

The Electrical Engineer MBU will be responsible for designing the electrical supply of superconducting magnet systems and will act as an Authorised Person (LV), managing electrical safe working practice in the group.

Superconducting magnets require an array of supporting systems, such as cryogenics, instrumentation, and current and/or voltage amplifiers, and it will be the Electrical Engineer’s responsibility to deliver complete mains power connection solutions, including distribution, protection, and earthing.


In this role, you will:

  • Design Low Voltage and Extra Low Voltage equipment and power distribution systems, including conductor sizing and specification of switchgear, transformers, protection etc.
  • Act as an Authorised Person (LV) within the Magnet Business Unit
  • Author design documentation and operating manuals, risk assessments, and method statements.
  • Support the development of electrical safety policy, and oversee its application as the basis for electrical safe working practice within the Magnet Business Unit.
  • Plan commissioning programmes, and oversee associated activities, with a focus on safety.
  • Work with other electrical engineers to establish design standards within the company.

Hazard-specific / Safety-critical duties

This job includes the following hazards or safety-critical activities which will require successful pre-employment health screening through our occupational health service before the successful candidate will be allowed to start work:

  • Working at height (ladders, scissor lifts, cherry pickers & scaffolding)
  • Working with electricity (LV & HV) (training will be given as required)
  • Working with or in the vicinity of equipment that produces high magnetic fields.
  • Working with materials that are managed under the control substances hazardous to health of regulations (COSHH).
  • Travel outside of Europe or North America on company business.



  • Track record of applying electrical safety policy and safe working practice (preferably as an Authorised or Senior Authorised Person).
  • Skills in the design of industrial electrical systems, e.g. sizing and component selection of transformers, protection, and switchgear.
  • Experience of authoring design documentation and operating manuals, risk assessments, and method statements.
  • A degree-level qualification or equivalent
  • Practical experience with LV designs in an industrial setting, with evidence of decision making and overseeing implementation.
  • Experience of applying BS 7671 and other related regulations, standards, and codes of practice.
  • Experience of planning of projects with small teams (1-3 people).
  • Familiarity with mains power distribution and associated plant.
  • Skills in schematic and panel layout, cable routing, with 2D CAD such as EPLAN or AutoCAD Electrical.


  • Experience in the development of electrical safety policy and safe working practice
  • C&G, EAL or equivalent AP(LV) or SAP(LV) certificate.
  • Experience with power electronic converters (AC-DC or DC-DC).
  • Experience with 3D CAD for cubicle design and panel layout.
  • Experience leading FMEA of electrical systems.
  • Experience of sizing and integration of Uninterruptable Power Supplies and backup generation.
  • Experience of mechanical design, fabrication, and assembly.
  • Experience of high-current (>1 kA) busbar design.
  • Familiarity with Functional Safety systems.
  • Experience of planning and supervising electrical installations.


  • 25 days holiday (plus bank holidays and 3 festive days to be used between Christmas and the New Year)
  • Company pension scheme
  • Eligible for company share option scheme
  • Company bonus scheme, discretionary, dependant on performance
  • A range of financial benefits including death in service and critical illness cover
  • Cycle to work scheme


No terminology in the advert or job description is intended to discriminate on the grounds of a person’s age, disability, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.  Every candidate will be assessed only in accordance with their merits, qualifications and abilities to perform the duties of the job.


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.


Working arrangements

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


Part time working or job share options will be reviewed on an individual basis.

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