A footman is a person who works as a servant in a wealthy household. They do various tasks like opening doors, carrying luggage, or serving meals. Full definition
An army of footmen wear painted masks so they can remain «deaf and always smiling», say the inter-titles. (sensesofcinema.com)
Observing the proceedings are the domestic staff of the mansion, including imperious butler Jennings (Alan Bates); footmen George (Richard E. Grant) and Arthur (Jeremy Swift); Probert (Derek Jacobi), a valet to Sir William; housekeeper Mrs. Wilson (Helen Mirren); Mrs. Croft (Eileen Atkins), who oversees the kitchen; and Elsie (Emily Watson), a maid. (gosfordparkmovie.com)
In chapter 2, Kosuke, fed up with living in the small cramped apartment he is forced to share with Kyoichi and Junta, decides to take the test to become a first footman at the cafe (so he can have his own room). (comicattack.net)