Stuart is DUG's Chief Information Officer and self-confessed supercomputing evangelist. Stuart has a PhD in Theoretical Physics, and over 25 years expertise in high-performance computing (HPC) either as a user, application developer, tool developer, system administrator, system architect and general HPC addict. Stuart designed and developed the 'DUG Cool' immersion-cooling system, and was instrumental in the construction of DUG's supercomputer facilities worldwide.