All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger. We ask Allaah to exalt his mention as well as that of his family and all his companions.
If the ads are free from any forbidden matter like forbidden pictures of women, or music, or that the employment contract on the ad is not defined or there is deceit in it, or that the ad is for a mixed employment between men and women, then this type of work is permissible.
Allaah knows best.