Mordecai occupied, apparently, a humble place in the royal household. He was probably one of the porters or doorkeepers at the main entrance to the palace Esther 2:21.
Related Commentaries of Esther 2:11
Esther 2:11
11 And Mordecai walked every day before the court of the women's house, to knowb how Esther did, and what should become of her.