Is it permissible to work as an IT manager for a newspaper or magazine that employs socialist writers who advocate for liberation and permissiveness, knowing that one would not interfere with the content and that it is difficult to find other work?

The means are judged by their ends. If the questioner's work for this newspaper does not directly lead to something unlawful or assist in it, then there is no harm. Otherwise, it is not permissible. It is stated in the jurisprudential maxims that "every permissible act, the performance of which leads to something forbidden, becomes forbidden"; this is because permissible acts are means, and the means to what is forbidden are themselves forbidden. In conclusion: working for the described newspaper is not permissible due to its assistance in falsehood and sin, except in a case of extreme religious necessity, where no other work is available to secure one's essential expenses for oneself and one's dependents. In such a case, it would be akin to eating carrion for one in dire need. As for supervising the newspaper's website and combating anything that contravenes the Sharia (definition) through it, if the questioner is truly able to delete everything that violates the Sharia and publish what conforms to it, then this is a noble deed. However, practical reality often does not allow for this.