John Warden serves as CEO of NX Atomics. He previously served as CEO of the Nuclear Institute and has been a member of several UK government and industry advisory groups on nuclear technology, engineering, and skills development.

Earlier in his career in the Royal Navy, John was a submariner and qualified pressurized water reactor (PWR) operator, serving as both supervisor and engineer of the Navy’s shore-based train-ing reactor. He also lectured at Master’s level in reactor physics to naval and civilian personnel and developed training and assessment programs for reactor operators and maintainers. He holds an MA in Physics from the University of Oxford, an MSc in Astrophysics from Queen Mary University of London, a postgraduate diploma in Nuclear Reactor Technology, and an MBA from the Open University. He is a Chartered Engineer and Chartered Physicist, and a Fellow of both the Nuclear Institute and the Institute of Physics.

Outside the nuclear sector, John serves as Chairman of the Aston Martin Heritage Trust, a global automotive charity.