Vacuum Engineer

Location: Milton Park, Abingdon
Salary: Competitive
Job type: Permanent

The role

A position is available in the Divertor team for a Vacuum Engineer. The successful candidate will be responsible for the vacuum compatibility of in-vessel tokamak components as well as for the integration and performance of the pumping and isotope separation systems for present and future fusion devices at Tokamak Energy.


  • Run and maintain the divertor vacuum system (operating valves, pumps, sensors, leak detectors, etc.).
  • Hold responsibility of the vacuum testing within the Divertor Laboratory in matters of planning, logistics, quality, equipment and safety, under the supervision of the Laboratory Manager.
  • Design, test and develop isotope separation systems towards ST-F1 D-T operations.
  • Qualify components and materials to be installed inside the tokamak vacuum enclosure.
  • Assembly and test, both in the laboratory and on the tokamak, of new or repaired components.
  • Study and design the vacuum system improvements needed to upgrade system performances, as required for the next generation tokamaks.
  • Specification and design of parts and assemblies required for setting up dedicated testing.
  • Interface management, liaising with physicists and engineers responsible for other tokamak systems’ R&D, power supplies, HTS magnet design and overall integration.
  • Monitoring external development on novel techniques for improving pumping performance.
  • Liaising with external contractors for the supply of vacuum hardware.

Hazard-specific / Safety-critical duties

  • Working at heights
  • Night working (11pm-6am)
  • Work in hot or cold environments
  • Driving on Company business
  • Working with Ionising Radiation
  • Regular manual handling
  • Travel outside of Europe or North America on company business

Selection criteria

The successful candidate will have a methodical but practical mindset, be able to understand and deliver complex vacuum solutions to a high-quality standard. Organised, self-driven and able to work to defined timescales. Demonstrate project and self-management skills to ensure system procurement, assembly, qualification and commissioning are completed on time. Have excellent communication skills and the ability to work in a team of engineers designing new and complex devices.


  • Degree in a relevant physics or engineering discipline, or equivalent experience.
  • Hands-on experience with high vacuum systems.
  • Demonstrated experience in the interpretation of pump down data and residual gas analysis.
  • Knowledge of the vacuum design process, manufacturing and conditioning methods, and associated tools and standards.
  • Hands-on mechanical, testing and diagnostic equipment experience.
  • Experience of working in a team of scientists and/or engineers.


  • Experience with design, specification, assembly, operation, monitoring and maintenance of high and ultra-high vacuum systems, preferably for high particle throughput setups with a mix of vacuum technologies.
  • Experience with evaporative and plasma deposition conditioning techniques.
  • Knowledge of technologies for Hydrogen isotope separation is highly desirable.
  • Experience with liquid metals in vacuum applications will be a plus.
  • Work experience related to UHV technology or cryogenics would be a significant asset.
  • Knowledge of vacuum fluid and/or molecular flow simulation tools.
  • Basic expertise with electrical and electronic installation for industrial applications
  • Experience defining technical drawings, datasheets, and written work instructions
  • An aptitude for programming and data analysis using software such as LabView, Microsoft Excel VBA, Python, etc.
  • Understanding and awareness of intellectual property.


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

How to apply

If you are passionate about accelerating the development of fusion power and want to join our dynamic team, please send your CV with a covering letter detailing your experience to

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:

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.

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