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 engineering team and are seeking a Neutronics Engineer to support advanced reactor and fusion programmes at Oxford Sigma. Working within multidisciplinary, fast‑moving design teams, you will deliver high‑quality neutronics analyses that directly inform engineering decisions and programme strategy.
You will apply Monte Carlo neutronics methods to assess neutron and photon behaviour across facility‑ and component‑level designs, covering shielding, activation, depletion and criticality. Your work will integrate closely with adjacent disciplines such as thermal hydraulics, materials and structural engineering, ensuring neutronics insights are embedded into practical design trade‑offs. You will also contribute to verification and validation activities, workflow automation, and the ongoing development of our internal analysis capability.
This role offers the opportunity to work on cutting‑edge fission and fusion challenges, contribute to nationally significant programmes, and develop both technical and leadership skills within a supportive, inclusive engineering environment.

Oxford Sigma is seeking a Mechanical Engineer to support advanced reactor and fusion programmes at the forefront of clean energy and national resilience. Working within multidisciplinary engineering teams, you will lead mechanical design activities from concept through manufacture, integration and testing, ensuring high‑integrity solutions that meet demanding technical, schedule and quality requirements.
This role offers the opportunity to contribute to both cutting‑edge research and the delivery of real‑world engineering systems in a highly respected, scientist‑ and engineer‑led organisation.