After graduating in History, Nick Ridley became an intelligence analyst, researching and analysing intelligence for law enforcement at New Scotland Yard and at Europol in the The Hague.
Whilst working he continued his studies and gained two doctorates, in international relations and anti terrorist studies.
He is now in academia, a Visiting Research Fellow at Liverpool John Moores University, teaching and supervising postgraduate students in international security subjects and writing books on international history and history of insurgencies.
In2026 he was elected a Fellow of the Royal Historical Society