Oxford Sigma is pleased to announce the appointment of Dr Vivian Lee as Head of Engineering, strengthening the company’s leadership as it accelerates the development of safe and commercially viable fusion energy technologies.
In her new role, Dr Lee leads Oxford Sigma’s engineering division, driving continuous improvement across the organisation and strengthening our company’s quality governance frameworks to ensure the successful delivery of complex, high-impact projects. Her appointment marks a significant step in expanding Oxford Sigma’s engineering capabilities to support the rapidly growing global fusion ecosystem.
Dr Lee brings a multidisciplinary background spanning aerospace engineering, experimental thermofluids, experimental rig design and commissioning, and fusion materials and manufacturing. She holds a PhD in Mechanical Engineering from Brunel University London. Prior to joining Oxford Sigma, Dr Lee spent nearly five years at Tokamak Energy, where she held leadership roles central to fusion materials and in-vessel technology programmes.
Throughout her career, Dr Lee has delivered a wide range of industry-funded and R&D projects. She is recognised for her ability to transform engineering challenges into opportunities for innovation, organisational learning, and team growth. Her leadership philosophy centres on empowering people: encouraging thoughtful risk-taking, embracing iterative learning, and fostering an environment where teams can excel. She is also a passionate advocate for STEM outreach and ED&I initiatives, championing a more inclusive and diverse engineering community.
Dr Lee’s appointment comes at a time of growth across the fusion sector, with increasing global demand for engineering leadership, advanced materials expertise, and high-assurance delivery that can scale with future fusion deployments. At Oxford Sigma, Dr Lee will be instrumental in shaping the evolution of the company’s engineering frameworks, enhancing delivery capabilities, and advancing Oxford Sigma’s mission to accelerate the deployment of safe, robust, and commercially viable fusion energy technologies.
“We are thrilled to welcome Dr Vivian Lee to Oxford Sigma. Her deep technical expertise, leadership experience, and commitment to advancing fusion engineering make her an exceptional addition to our team. Dr Lee’s vision and drive will play a pivotal role in strengthening our engineering foundations and accelerating the safe and timely deployment of fusion energy technologies worldwide.”
Prof. Thomas P. Davis, CEO, Oxford Sigma
Oxford Sigma is delighted to welcome Dr Vivian Lee and looks forward to the vision, expertise, and energy she brings to the company’s next chapter. This appointment further strengthens Oxford Sigma’s mission to support the safe, timely, and coordinated delivery of fusion energy technologies worldwide.