Sir Julian is a Senior Advisor at Flint Global, Fellow of RUSI and the Oxford Internet Institute. He was the last British European Commissioner, serving as EU Commissioner for the Security Union from 2016-2019, with responsibility for counter terrorism, cyber security, tackling hybrid threats, disinformation, and securing critical digital infrastructure.

He joined the Foreign & Commonwealth Office in 1985.  He has held various positions, including:  UK Ambassador to France (2016); Director General Economic & Consular (2014); DG of the Northern Ireland Office London and Belfast (2011); UK Ambassador to Ireland (2009); EU Commission Chef de Cabinet to Commissioner for Trade (2008); UK Representative on EU Political and Security Committee, (2004).

Sir Julian is a graduate of Oxford University and the Ecole Nationale d’Administration, Paris.