This vacancy (Talent Pool UK) is not a specific job or role in Oxford Sigma but rather a opportunity to present yourself if you believe that your skills and experience could be suitable for Oxford Sigma.

We are expanding our wider team to support the business in bringing materials solutions for fusion, nuclear and security applications.
We are looking for a Business Administrator with experience supporting office and business functions. This role provides essential administrative, commercial and compliance support to ensure smooth daily operations and strong internal governance.
We are happy to receive applications from those looking for either full or part-time work.

This 8‑week paid internship (starting July 2026) focuses on assessing how impurities in lithium materials may impact the performance of ceramic breeder blankets used in fusion energy systems. The intern will develop Monte Carlo neutron transport (neutronics) simulations to evaluate impurity effects on tritium breeding, working closely with a parallel materials-focused intern examining the lithium supply chain. Embedded within Oxford Sigma’s multidisciplinary design and materials teams, the role offers hands-on experience in fusion technology, applied modelling, and industrially relevant research, with outputs contributing to a technical report and potential peer‑reviewed publication.

This 8‑week internship (starting July 2026) focuses on understanding the lithium supply chain and the impurities that may affect the performance of lithium ceramic breeder materials used in fusion energy systems. The intern will investigate the sources, characteristics, and impacts of lithium impurities arising from mining and manufacturing, alongside mitigation approaches relevant to commercial fusion deployment. Working closely with a parallel intern undertaking neutronics analysis, the project will contribute to a joint technical report and potentially a peer‑reviewed publication, supporting the scale‑up of fusion energy towards commercial viability.

This 8‑week internship (starting July 2026) focuses on the manufacturing and characterisation of lithium ceramic breeder materials used to produce tritium for fusion energy systems. The intern will develop and optimise laboratory‑scale processes to manufacture lithium ceramic pebbles, investigating powder processing, forming, and sintering routes, and characterising materials using standard techniques such as microscopy and X‑ray analysis. Embedded within Oxford Sigma’s Materials team, the project addresses real challenges faced by international fusion programmes and will culminate in a technical report detailing process development and key findings.

This 8‑week internship (starting July 2026) focuses on supporting the development of hydrogen research infrastructure central to Oxford Sigma’s fusion materials strategy. The intern will define component requirements for key hydrogen systems, including a metal hydriding fabrication rig and a hydrogen permeation test setup, by developing detailed procurement lists informed by internal designs, P&IDs, and literature. Embedded within Oxford Sigma’s Materials team and working closely with Design and Analysis colleagues, the project will directly contribute to advancing the technology readiness of hydrogen‑related experimental capabilities and fusion‑relevant materials research.