Mr. Kosiba is the Chief of Computer Network Operations (CNO). Prior to his arrival, he was the Deputy Director of the NSA/CSS Commercial Solutions Center (NCSC) and the Chief of the Network Solutions Office within the NCSC. He was the Chief of the Special US Liaison Officer (SUSLOC) in Canberra, Australia from June 2012 to July 2015. Mr. Kosiba has 29 years of Federal Government service with the last 21 years in technical management/leadership positions. During his career at NSA, he has served in technical leadership positions requiring collaboration responsibilities with domestic and foreign government representatives. Mr. Kosiba was selected for the Defense Intelligence Senior Level (DISL) Service position in March 2012. Prior to being assigned as the SUSLOC, Mr. Kosiba served as the Technical Director for the Requirements and Targeting (R&T) Office in the Tailored Access Operations (TAO) organization at the National Security Agency from August 2010 to June 2012. Prior to that tour, he served as the Plans and Policy Technical Director for USCYBERCOM, and as the Technical Director for the Joint Functional Component Command for Network Warfare (JFCC-NW) from December 2007 to August 2010. Mr. Kosiba has frequently represented NSA and USCYBERCOM at The White House and other government sponsored deliberations relating to cyber activities.