Masaaki Sakamaki has had an extensive public service career spanning twenty eight years. He left the Ministry of Internal Affairs and Communications after serving as the Director General of Chugoku Bureau of Telecommunication. He has held diverse Directorships in the government, which include Director for International Policy, Director for Information and Communications Policy, Private Secretary to the Minister, Counselor for Economic Affairs at the Embassy of Japan in Washington, DC, and other notable posts. Sakamaki was also appointed to the United Nations Working Group on Internet Governance as a Member by the UN Secretary General. He volunteers for the Pacific Telecommunications Council as an Advisory Council member and co-chaired the program committee. He is currently a board member of DOCOMO CS, Inc., NTT DOCOMO.