Refers to the group of people working for an organization, or an individual member of that group. Common in business, event, and service contexts.
We are recruiting new staff.
イベントのスタッフとして働いた。
I worked as a staff member for the event.
The staff at this restaurant are very kind.
During summer vacation I worked as staff at an amusement park.
If there's anything you don't understand, please ask a staff member.
The new cafe is recruiting opening staff.
スタッフ is a casual loanword for 'staff', while 人員 is a formal Sino-Japanese term often used in reports, planning, and official documents.
ground staff