What is the ruling on my working as a presenter for a channel that features intermingling [of sexes] and unveiled women, given that my work requires me to interview female personalities? And is the salary earned from this work unlawful?

The basic principle regarding mixing [between genders] is prohibition and restriction, because it is a means to corruption. The presence of unveiled women and interacting with female personalities necessitates the impermissibility of working in this place. Therefore, the questioner must leave it, unless he is compelled to do so, while diligently searching for another job. The salary he received is not unlawful unless his work itself was unlawful.