Since Antarctica is primarily dedicated to scientific research and exploration, the people living there are usually scientists, researchers, and support staff from various countries who are funded by their respective governments or research institutions.
They are provided with salaries, housing, and other necessary resources for their work. However, because it's a non-commercial continent and there are no permanent settlements with an economic structure, there are no typical money-making opportunities or formal employment outside of the research and support activities carried out by the scientific communities.