Electrical Engineer

Location: Milton Park, Abingdon (OX14)
Salary: Competitive depending on experience
Job type: Permanent


Tokamak Energy aims to accelerate the development of fusion energy by combining two emerging technologies – spherical tokamaks and high-temperature superconductors.

The company was originally established in 2009 to design and develop small Spherical Tokamaks and compact fusion reactors for a range of applications.  Since then, the strategy has evolved to prioritise building a pilot plant to exceed fusion energy breakeven.


Person and Job Specification

The Role:

The candidate will be part of the Electrical Engineering team. The team is responsible for the design, installation and commissioning of a large number of pulsed power supplies as well as installation and commissioning of the controls, diagnostics and safety systems for the ST40 programme.


Duties will include

  • High power busbar installation including temperature monitoring systems.
  • Earthing layout for stared system capable of handling high power impulse currents.
  • Installation and commissioning of high voltage power supplies and high current power supplies.
  • Commission and installation of PLC and HMI for equipment interlocks and LabVIEW for power supply control and remote user interface communications.
  • Writing of risk assessments and installation method statements for proposed installations


Contacts and Communication

  • Liaising with other engineers responsible for cooling water systems, vacuum and physics parameters.
  • Liaising with various manufacturing companies.
  • Internally the post holder will communicate with the Electrical Engineering Group manager, other mechanical and electrical engineers working within the Company.
  • Externally the post holder will be responsible for the management of electrical engineering manufacture contracts and will therefore have to liaise with manufacturers and component suppliers.


Personal Skills and Attributes


  • 3D or 2D CAD experience. E.g. AutoCAD, SolidEdge or other.
  • Electrical power engineering.
  • Good fault finding skills, using oscilloscopes and other test equipment.
  • Fully conversant with engineering drawings and circuit diagrams.
  • Good communication skills.
  • Knowledge, understanding and application of BS7671 and Electricity Safety.



  • Usage of Electrical circuit simulators for electrical simulation.  E.g. PLECS or PSPICE or other.
  • Power electronics experience, including simulation and design, and hands-on experience.  Using SCRs, IGBTs, Supercapacitors and other power components.
  • High power electrical experience, building power busbars, coil feedthrough and electrical jointing.
  • Earthing system experience.
  • PCB Creation, using OrCad, EagleCad or other.
  • Experience in high voltage and high current pulsed power supplies and topologies.
  • Experience in PLC and communication interfacing.
  • Experience of using temperature monitoring (PT100, PT1000, Thermocouple) systems.
  • The post will involve occasional travel within the UK and overseas.
  • Previous experience within a scientific facility or similar.


Any other Relevant Information

The right candidate will be given training in required areas to perform their duties.




  • Degree in Electrical Electronic Engineering



  • Experience of working on pulsed power supplies
  • At least 2 years’ relevant experience at an appropriate level.
  • Health & safety IOSH



  • 25 Days Holiday (plus bank holidays)
  • Company Pension scheme: Company contribution of 5% of salary after 3 months’ service
  • Eligible for company share option scheme after one years’ service
  • Company bonus scheme, discretionary, dependent on performance
  • Private medical insurance after 3 months’ service

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