What is the ruling on a niqabi woman uncovering her face to non-mahram men via surveillance cameras in a children's nursery?

The obligation for a woman to cover her face from non-mahram men is a matter of scholarly disagreement, though the prevailing fatwa is that it is obligatory. If the questioner does not have a pressing need to work in the nursery, she should not remain there, because the presence of cameras enables men to see her. It is impermissible for a woman to engage in trade if it exposes her to displaying prohibited adornment, or to travel without a mahram, or to mix with non-mahram men in a way that risks fitna. Rather, she must be prevented from doing so, as she would be committing a prohibited act in order to obtain something permissible.