An employee who is a member of a staff of workers (especially a member of the staff that works for the President of the United States)(noun)
WordNet. Princeton University. 2010.
Use "staff member" in a sentence
"A junior staff member there named Chris Cylke achieved acronymic immortality by coming up with this inspiring moniker: Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001."
"News travels quickly when an American is coming in by chopper and every doctor, clerk, administrator, and staff member hustled in for a front-seat view of the action."
"A staff member gave her his address in East Las Vegas."