What is the ruling on working for an Arab airline company that serves alcoholic beverages, knowing that the work will be in the strategic planning or sales department, and will not be directly related to alcoholic beverages?

If your field of work is permissible and does not involve serving or bringing alcohol, or any kind of assistance related to it, then there is no blame upon you in it or in what you earn from it. You should advise the officials to refrain from serving alcohol due to its prohibition.