She is an unnamed Orian guard (played by Myrthin Stagg), not a bounty hunter. She was in charge of the cell block where Harcourt Fenton Mudd was being held in an Orion prison in one of the flashback scenes in ST-ST S01E04: The Escape Artist.

Earlier, the same Short Trek vignette opened with an armored female bounty hunter selling Harcourt Fenton Mudd to a Tellarite bounty hunter, Tevrin Krit. This is likely where your confusion comes from. They are not the same human/alien being.
A Tellarite bounty hunter, Tevrin Krit, purchases prisoner Harcourt Fenton Mudd from a female bounty hunter before she beams away and departs. Mudd pleads his innocence, only to have Krit bring up the United Federation of Planets' charges against him—and reward for his capture.
source:Memory Alpha - The Escape Artist

The female bounty hunter was actually Harcourt Fenton Mudd in disguise and he was selling an android duplicate of himself to the Tellarite. Perhaps he got the idea for the disguise from his former prison guard.