HTS Cryogenic Engineer

Location: Milton Park, Oxfordshire, UK


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 Company has unlocked a new route to scalable fusion power that is cost-effective and does not require huge infrastructure and capital expenditure. The technology will revolutionise the world’s energy production – it will be possible to produce more energy, more cheaply and with fewer harmful side effects (e.g. with no long-term nuclear waste or carbon emissions). Tokamak Energy aims to accelerate the development of fusion energy by combining two emerging technologies – spherical tokamaks and high-temperature superconductors (HTSs). The company’s innovation has been featured on Channel 4 news, BBC News Click and Reuters news channel and they received a Technology Pioneer Award at the World Economic Forum on 2016. This is the chance to join a fast-growing high technology company with an agile, dynamic team and to tackle the challenge of a lifetime.


Person and Job Specification

The Role

A position is available in the HTS magnet team for an HTS Cryogenic Engineer. The successful candidate will be responsible for the thermal performance of cryogenic test equipment to enable the pioneering work taking place on HTS magnet development at Tokamak Energy. The successful candidate will have a methodical, analytic mindset, able to analyse and understand complex design problems in rigorous detail. Organised, self-driven and able to work to defined timescales. Demonstrate project management skills to ensure system design completed on time. Have excellent communication skills and the ability to work in a team of engineers designing new and complex devices.



  • Design and analysis of cryogenic heat exchanges and current leads for cooling prototype HTS magnets.
  • Specification and design of instrumentation and wiring.
  • Liaising with other engineers responsible for HTS magnet design, tokamak physics, power supplies and mechanical integration.
  • Liaising with external contractors for supply of cryogenic hardware.
  • Highly motivated to deliver against challenging objectives in a compressed timescale.
  • Ability to contribute effectively in a multi-disciplinary team of engineers and scientists.
  • Willingness to learn new techniques and technologies.
  • Effective written and oral communication skills.
  • Organised approach to complex problems.
  • Ability to work effectively with minimal supervision.
  • Proactive attitude.
  • Self-starting and self-reliant.
  • Ability to devise and operate effective project schedules.
  • Creativity and innovation.


Essential Criteria

  •  Degree in a relevant scientific or engineering discipline.
  • Experience designing for cryogenic and vacuum environments.
  • Thermal finite element analysis experience.
  • An aptitude for programming and data analysis using software such as MATLAB, Microsoft Excel VBA, Python, National Instruments LabVIEW, etc.
  • Experience of working in a team of scientists and/or engineers.


Desirable Criteria

  • Experience with design, specification or operation of cryogenic systems for
  • superconducting magnets.
  • Knowledge of cryogenic design methods and associated design tools.
  • Knowledge of electrical and fluid control engineering and/or instrumentation.
  • Computational fluid dynamics, 3D visualisation and CAD skills.
  • Understanding and awareness of intellectual property.
  • Experience using test and diagnostic equipment.



  • 25 days holiday (plus bank holidays)
  • Company pension scheme
  • Eligible for company share option scheme after 1 years’ service
  • Company bonus scheme, discretionary, dependent on performance
  • Private medical insurance after 3 months service

Current vacancies

Technical Buyer

+ Learn more

Diagnostics Team Leader

+ Learn more

Plasma Diagnostician

+ Learn more

Plasma Physicist

+ Learn more

Special Projects Manager

+ Learn more

HTS Mechanical Engineer

+ Learn more

HTS Magnet Systems & Instrumentation Technician

+ Learn more

HTS Power Electronics Engineer

+ Learn more

HTS Measurement Engineer

+ Learn more

Tokamak Scenario Modeller

+ Learn more

Health and Safety Manager

+ Learn more

Quality Manager

+ Learn more