business manager; person in charge; administrative contact
Refers to the person responsible for administrative or clerical matters in an organization. Often used in business contexts to designate a point of contact.
Please contact the person in charge of administrative affairs.
He is the administrative contact for this project.
A more general term for 'person in charge' without the administrative nuance. 事務担当者 specifically refers to someone handling clerical or office-related duties.
Compound of 事務 (じむ, 'office work, clerical affairs') and 担当者 (たんとうしゃ, 'person in charge').