noun
case worker; case officer
An official in charge of a specific case, client, or administrative matter. Common in government, social services, and corporate contexts.
福祉課の担当官が自宅を訪問した。
The case worker from the welfare division visited my home.
この件については、担当官にお問い合わせください。
For this matter, please contact the case officer in charge.
Compound of 担当 (charge, responsibility) and 官 (government official, officer).