noun
regular employee; permanent employee; full-time employee
Refers to a company employee with a permanent, full-time contract, as opposed to temporary, contract, or part-time workers. Often contrasted with 派遣社員 (temporary staff) or パート (part-timer).
See also: 派遣社員 (はけんしゃいん)
彼は大手企業の正社員として働いている。
He works as a regular employee at a major company.
正社員と派遣社員では待遇が大きく異なる。
There is a big difference in treatment between regular employees and temporary staff.