Senior Radiation Systems Engineer

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

The role

The commercialisation of fusion requires that a number of fascinating design challenges are met. One of these is radiation shielding. The size and performance of a spherical tokamak is strongly dependent on reducing the thickness of the shield that protect the superconducting coils from the 14.1MeV fusion neutrons and gamma rays. Provision of a bio-shield is also essential. We are looking for a Radiation Systems Senior Engineer to develop the computational capability of the team as well as playing a key part in solving some of these challenges by applying sound physics and engineering judgement to develop shielding designs which meet the design requirements.


  • Work with the Tokamak Energy IT department to develop the capability and capacity of the Radiation Systems computational resources
  • Assist in the forward-planning of the Radiation Systems strategy for large-scale radiation transport and radiation effects calculations
  • Manage and develop in-house software tools
  • Develop interface software to efficiently transfer 3D CAD and other design information to radiation transport programmes
  • Perform radiation physics computations and simulations in line with project requirements
  • Advance the maturity of tokamak Radiation Systems from initial conceptualisation through to detailed design
  • Present technical information to both expert and non-expert audiences
  • Interface and collaborate with a variety of in-house and external resources

 Selection criteria

  • Experience of managing or administering a high-performance computational network, preferably in a radiation physics, or similar, context
  • Advanced user of Visual Basic, or similar, to write software utilisation tools and macro scripts
  • Experience and knowledge of radiation transport methodologies, including Monte Carlo, particularly MCNP, deterministic and point kernel techniques
  • Experience or qualification in nuclear technology physics and/or fusion energy
  • Experience in producing system design descriptions and system interface documentation
  • Knowledge of techniques on how to provide assurance of radiation modelling results through computational and experimental validation and verification
  • An ability to communicate effectively to peers and management
  • A proven track record of solving complex problems in a rigorous, organised fashion through effective planning and review
  • Computationally competent in the ability to use radiation transport software efficiently as well as preparing effective analytical results through word processing and other software tools
  • Highly motivated to deliver against challenging objectives in a compressed timescale
  • A proactive and self-reliant approach to work with minimal supervision
  • Experience of working well in a team of scientists and/or engineers.

Desirable selection criteria

  • Knowledge of the effects of radiation on materials and Electronic, Electrical and Electro-mechanical (EEE) devices
  • Experience and working knowledge of a variety of programming languages such as C++, Python, Java and FORTRAN
  • In-depth knowledge of radiation shielding and neutronics, including variance reduction and activation/transmutation methods (FISPACT/ORIGEN)
  • Experience in regulatory interaction, including ALARP justifications
  • A PhD or MSc (or equivalent) in Nuclear Fusion, or a related subject
  • Professionally recognised qualifications such as Chartered Engineer or Chartered Physicist, or international equivalents
  • Understanding and awareness of intellectual property.


  • 25 days holiday (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

Please note: Only candidates with the relevant skills and experience will be contacted regarding this position.  If you do not hear back from us within 10 days of submitting, your application then unfortunately you have been unsuccessful.  However, we may contact you in the future to discuss other opportunities.

No terminology in the advert or job description is intended to discriminate on the grounds of a person’s gender, marital status, race, religion, colour, age, disability or sexual orientation.  Every candidate will be assessed only in accordance with their merits, qualifications and abilities to perform the duties of the job.

How to apply

Please submit 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.

Current vacancies

Plasma Control Engineer/Physicist

+ Learn more

Quality Manager

+ Learn more

Procurement Officer – In-directs and Supplier Performance

+ Learn more

Procurement Assistant

+ Learn more

Tokamak Systems Integration Engineer

+ Learn more

Radiation Shielding Engineer

+ Learn more

Manufacturing Engineer

+ Learn more

HTS Magnet Physicist

+ Learn more

Plasma Diagnostician

+ Learn more

Development Engineer

+ Learn more

Controls Manager

+ Learn more

Programme Manager

+ Learn more

Divertor Physicist

+ Learn more

Talent Pool

+ Learn more

Safety Systems Engineer

+ Learn more

Senior Electrical Technician

+ Learn more

Mechanical Engineer

+ Learn more

Instrumentation Technician

+ Learn more