Jobber

Webster's Dictionary of the English Language

·noun One who works by the job.

II. Jobber ·noun A dealer in the public stocks or funds; a stockjobber.

III. Jobber ·noun One who buys goods from importers, wholesalers, or manufacturers, and sells to retailers.

IV. Jobber ·noun One who turns official or public business to private advantage; hence, one who performs low or mercenary work in office, politics, or intrigue.