noun
chief information officer; CIO
Formal business title for the executive responsible for information technology and computer systems.
彼は大手企業の最高情報責任者に就任した。
He was appointed chief information officer of a major corporation.
Compound of 最高 (highest), 情報 (information), and 責任者 (person in charge). A direct translation of the English title 'chief information officer'.