part-timer

[ pahrt-tahy-mer ]
/ ˈpɑrtˈtaɪ mər /

noun

a person who works, attends school, etc., less than full time.

Origin of part-timer

First recorded in 1925–30; part-time + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019