Is the wage earned from working for a company that stores alcoholic beverages unlawful (haram) or dubious (fiha shubha), knowing that the nature of the work is refrigeration technology and other job opportunities are unavailable?

If your work is not connected to alcohol stores, and the majority of the company's activities are permissible (halal), then there is no harm in working there, though it is better to seek another job. However, if the majority of the company's activities are forbidden (haram), or if you directly engage in the forbidden work yourself, then it is not permissible to work there, as it involves cooperating in sin and aggression.