Deputy Director of Cyber Policy and IT Department of the Estonian Ministry of Defence. Although Mr Sepp joined the Ministry of Defence in September 2015, he has been in the Estonian Foreign Service as a career diplomat since 2003. He was sent on various missions: to Luxembourg (2005), to the Permanent Representation of Estonia to the EU (2006–2009), to the Special Mission of Estonia in Afghanistan (2009–2011) and to the Estonian Embassy in Washington, DC (2012–2015).