Mr. Walker is a Nuclear Physicist and Nuclear Engineer, with experience in reactor core manufacturing facilities and nuclear fuel reclamation plants. He has also worked as a nuclear physicist and thermal-hydraulicist on the U.K. successor class of submarines, and was the MoD subject matter expert for nuclear fuel reclamation. Mr. Walker has extensive experience in engineering and project management, across other domains, including mining engineering, mechanical engineering, construction, manufacturing, and infrastructure, and has executive experience in several public companies Mr. Walker holds degrees in Mechanical Engineering, Mining Engineering, and Nuclear Physcs and Engineering, as well as qualifications in Project Management and Accountancy. He is a Chartered Physicist with the Institute of Physics, a Charted Engineer with the IMechE, a Project Manager Professional with the APM, and a Professional Engineer in North America.