clerk

A clerk is a white-collar worker in an administrative professional capacity who conducts record keeping as well as general office tasks, or a grey-collar worker (or to a lesser extent, a blue-collar worker) who performs similar sales-related tasks in a retail environment. The responsibilities of clerical workers commonly include record keeping, filing, staffing service counters, screening callers, and other administrative tasks. In City of London livery companies, the clerk is the chief executive officer.