The bar staff
or waiters serving drinks in pubs, clubs, bars, cafes, bars and hotels.
As a staff member of a bar of its main functions include:
Serve drinks to customers
Collecting payment and operation of the box
Provide Snacks such as chips and nuts.
You would be responsible for keeping the area clean and well stocked
bar, which would imply:
Storage of empty bottles
and clean the tables and the bar regularly.