part-timer ˌpart-ˈtimer noun [countable] JOBS
someone who only works for part of the week:
• We employ about 20 part-timers, mainly women who have children.
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part-timer UK US noun [C] HR, WORKPLACE
► a person who works for only some of the day or the week: »
Call centres are always looking for part-timers to work shifts.
Financial and business terms. 2012.