Dmytro Senik joined the Foreign Service in 2004.
In 2007-2011 he worked at the political section of the Embassy of Ukraine in the United States.
In 2011-2012 Dmytro worked as principal assistant to the Deputy Foreign Minister of Ukraine.
In 2012-2014 he was Adviser to the Foreign Minister, and later to the Deputy Prime-Minister of Ukraine.
In 2016 Dmytro Senik was appointed Ambassador of Ukraine to the Republic of Singapore. He also served as Ambassador of Ukraine to Brunei Darussalam and to New Zealand (with residence in Singapore).
In July 2020, Mr. Senik was appointed Deputy Foreign Minister of Ukraine, Chief Digital Transformation Officer.