laborer — a person engaged in work that requires bodily strength rather than skill or training: a laborer in the field.
operator — a person who operates a machine, apparatus, or the like: a telegraph operator.
representative — a person or thing that represents another or others.
apprentice — An apprentice is a young person who works for someone in order to learn their skill.
assistant — Assistant is used in front of titles or jobs to indicate a slightly lower rank. For example, an assistant director is one rank lower than a director in an organization.
breadwinner — The breadwinner in a family is the person in it who earns the money that the family needs for essential things.
cog — A cog is a wheel with square or triangular teeth around the edge, which is used in a machine to turn another wheel or part.
domestic — of or relating to the home, the household, household affairs, or the family: domestic pleasures.
help — to give or provide what is necessary to accomplish a task or satisfy a need; contribute strength or means to; render assistance to; cooperate effectively with; aid; assist: He planned to help me with my work. Let me help you with those packages.
hireling — a person who works only for pay, especially in a menial or boring job, with little or no concern for the value of the work.
jobholder — a person who has a regular or steady job.
plug — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
salesperson — a person who sells goods, services, etc.
slave — a person who is the property of and wholly subject to another; a bond servant.
blue collar — of or relating to wage-earning workers who wear work clothes or other specialized clothing on the job, as mechanics, longshoremen, and miners. Compare white-collar.
desk jockey — an office worker who sits at a desk, often as contrasted with someone who does more important or active work: desk jockeys at the CIA.
hired gun — a person hired to kill someone, as a gunfighter or professional killer.
hired hand — a hired laborer, especially on a farm or ranch; farm hand or ranch hand.
pink collar — of or relating to a type of employment traditionally held by women, especially relatively low-paying work: secretaries, phone operators, and other pink-collar workers.
working stiff — A working stiff is a person who has an ordinary job that is not well-paid.