Shop Staff, Store Staff, Store Employee, Shop Employee, Clerk, Shop Assistant
noun, の adjective
The shop member is someone who is a "member" (aka employed by) the shop. This is the shop staff.
てんいん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
レジに店員がいない。
There is no staff at the cash register.
店員さんにメニューについて聞いてみよう。
Let's ask the staff about the menu.
あの店員さん、とってもお茶目だったね。
That shop employee was a real kidder, wasn't he?