Is it permissible to work in a company that may promote Haram, such as a children's science center with events involving TV shows that contain Haram elements like magic, even if I am not directly involved?
Bismihi ta'ala
If you want to work in a children's science center, then I would not say this center promotes haram. Yes, there might be certain elements of the environment that are not shar'i compliant, but that is like anywhere else. If you wanted to work in a supermarket, they also have music, etc.
The magic that is there, from my understanding, is not really magic, but more like illusions and entertainment, so it would not be completely haram as well.
Therefore, if you are working in such a place, and you do not have any direct involvement in any explicitly haram act, nor would you become influenced towards it, then it is permissible to work there.
And Allah knows best