Is the work the questioner does—preparing and publishing articles in his boss's name, and the money he earns from it—permissible in Islamic law?

Your work in preparing the articles makes you the intellectual owner of them, which has two effects: a material one (financial rights) and a moral one (attribution of the work to you). It is not permissible to waive the intellectual paternity of your work. You are allowed to take money because it represents your material right. The suggestion of a topic idea or the correction of what you have collected does not change the fact that the articles are your intellectual property.