TOKAMAK Operations Engineer

Company: Fusion Energy Base
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Overview of Responsibilities

The salary for this role is £64,820 (inclusive of a Specialist Allowance). Onsite working is expected for 5 days each week, however, we actively support requests for flexible working. This role can be based at any of the following sites; Culham, Oxfordshire. The role requires employees to complete an online Baseline Personnel Security Standard (BPSS), including Disclosure & Barring Service (DBS) checks for criminal convictions and possibly a search of open source data.

The MAST-U is currently the largest operating spherical tokamak in the world, providing a facility on which to perform experiments to provide the answer to key questions for fusion power to be delivered to the grid. We are looking for a TOKAMAK Operations Engineer who will be contributing directly to several critical aspects of the MAST-Upgrade Operations & Machine Protection Working Group (MPWG) for MAST-U function: establishing and updating the Design Basis together with the Operational Envelope in an informed, controlled manner through identification and strategic mitigation of Technical Risk both on a proactive and reactive basis. You will also be working on development and effective implementation of appropriate Engineering Processes and Standards across UKAEA.

Key Responsibilities

  • Lead and manage the execution of high profile mechanical engineering activities (including exploratory research, assessment of plant designs / modification and reactive/proactive issue resolution for operational plant) with particular emphasis on tasks requiring expertise in analyses ranging from first principles, numerical solutions and multi-disciplinary simulation use and development of computer aided engineering (CAE) tools to simulate design functionality and qualify performance.
  • Manage schedules of reference calculation methods and tools for use in a fusion component design relevant benchmarking experiment, physical test or plant demonstration behaviour of complex / interacting plant systems impact of lifetime degradation effects.
  • Define the MAST-U Operating Instructions (MOIs) with input from appropriate experts to ensure the availability of the machine for operations.
  • Monitor MAST-U operations with respect to the MOIs to ensure that the operation of MAST-U does not impact on Personnel Safety, fatigue lifetime or integrity of the machine.
  • Implement revisions to existing MOIs or introduce new ones as required.
  • Diagnose and resolve issues of plant integrity and plant protection. Ensure that the operation of the experimental facilities has an appropriate balance between performance, reliability and lifetime.
  • Identify improved ways of operating the research machines to enhance their performance within the existing capabilities of the available plant.
  • Undertake technical investigations and assessments into design or operational issues.
  • Undertake ‘fitness for purpose’ reviews.
  • Technical Risk Assessment & Management for competing requirements (Reliability, Safety, Performance, Lifetime).
  • Lead risk‑based exceptions / tailored application based on a clear understanding of the rationale for the rules.
  • Subject matter expert for specific regulations. Author of compliance processes or procedures within a diverse business; Member of relevant industry working groups and standards development organisations, etc.
  • Working with and interpreting between multiple engineering disciplines.

Salary

£64,820 (inclusive of Specialist Allowance) + excellent benefits including outstanding pension.

Qualifications

  • Engineering Degree at BSc/MSc level and higher or equivalent.
  • Ability to perform exploratory design calculations using first principles.
  • Proven capability in engineering analysis and a good working knowledge of engineering materials and their properties.
  • Demonstrable mechanical engineering design experience with mechanical and electrical machinery, electromagnetics, structural integrity and with ultra-high-vacuum equipment.
  • Demonstrable mechanical engineering manufacturing experience.
  • Demonstrable ‘Systems integration’ experience in design and construction, both general (the efficient matching of diverse engineering systems in a large complex project) and specific (the detail engineering of interfaces).
  • Practical technical experience of operating complex prototype equipment.
  • Some experience in one or more of the following areas:
    • Tokamak system technologies.
    • Control and instrumentation.
    • Elementary plasma physics.
    • Cryogenics.

Additional Information

A full list of our benefits can be found here https://careers.ukaea.uk/life-at-ukaea/employee-benefits/.

UK Atomic Energy Authority is committed to being accessible. Please email talent@ukaea.uk if you have any questions or require help or adjustments to compete on a fair basis, for example, changes to the way we interview or share information.

UK Atomic Energy Authority is committed to inclusive recruitment and actively promotes diversity within our organisation.

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Posted: June 12th, 2026