It should be clear that if she works while respecting the limits of Shariah, she does makeup of only ladies, during this she does not cut hairs against the constraints of shariah, she avoids impermissible activities like making eye brows and does not mix with people who are not mehram but maintains hijab as per Shariah, then there is some room to do this job
Allah knows best
Darulifta Al Ikhlas, Karachi