The Opportunity
We are looking for a Plasma Physicist to join our Plasma Prediction & Simulation (PSPS) team, within the Integrated Core–Scrape-Off Layer (SOL)–Divertor group.
This is an exciting opportunity to work at the forefront of fusion research, supporting the ST40 LEAPS programme through experimental physics, data analysis, and modelling. You’ll contribute to high-impact projects, publications, and presentations, while collaborating with multidisciplinary teams across the organisation.
We welcome applications from early-career researchers through to experienced physicists.
Core Responsibilities
* Support and perform edge and divertor physics experiments on ST40
* Analyse and interpret experimental data (e.g. Langmuir probes, IR thermography, spectroscopy)
* Apply computational modelling to support experimental findings
* Collaborate with cross-functional teams including Diagnostics, Data & Control
* Present insights internally and externally (conferences, publications)
Additional / Development Activities
Predict heat flux on plasma-facing components using tools such as HEAT, COMSOL or ANSYS
* Support divertor and component design and optimisation
* Contribute to next‑generation fusion device concepts
* Perform modelling relevant to edge and divertor physics
Essential
* PhD in plasma physics or related discipline (or equivalent experience)
* Understanding of tokamak physics, particularly plasma exhaust and core‑edge integration
* Experience in experimental data analysis and uncertainty handling
* Programming skills (e.g. Python, scientific computing, version control)
* Strong communication skills and ability to work collaboratively
* Able to manage multiple priorities in a fast‑paced environment
Desirable
* Experience in edge, SOL, or divertor physics
* Exposure to tokamak operations and experimental planning
* Experience with scientific modelling tools (e.g. SOLPS‑ITER, TRANSP, EFIT, COMSOL, ANSYS)
* Familiarity with databases and data systems
* Experience in cross‑functional or matrix environments
Personal Attributes
* Adaptable and flexible, thriving in a scale‑up environment
* Curious and eager to develop new skills
* Proactive, self‑motivated, and comfortable taking ownership
Health & Safety Requirements
* Driving on company business
* Working near high magnetic field equipment
* Occasional international trave
Benefits
* Competitive salary tailored to your skills and experience (openly discussed from the outset)
* 25 days holiday + bank holidays, plus discretionary festive shutdown
* Performance‑led rewards including bonus, innovation and merit schemes
* Share options – a stake in our future success
* Pension and comprehensive financial protection package
* Health and wellbeing support, including cash plan and 24/7 assistance
* Ongoing investment in your growth with training and career progression
* Be part of world‑changing innovation in fusion energy
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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