noun
assistant section manager; assistant section chief
A specific corporate title in Japanese companies, ranking just below 課長 (section manager/chief).
彼は今年、課長補佐に昇進した。
He was promoted to assistant section manager this year.
課長補佐として、会議の準備を担当しています。
As an assistant section chief, I am in charge of preparing meetings.
Compound of 課長 (section manager) and 補佐 (assistant, aide).