Am I permitted to work for a passenger transport company on ships that travel through Europe and America, knowing that I am unemployed and the salary is tempting?

It is permissible to travel to non-Muslim countries for trade as needed, as long as it does not necessitate the Muslim's submission to the laws of disbelief. If the Muslim will be humiliated and subjected to the laws of disbelief, then travel is forbidden. It is disliked to travel to non-Muslim countries due to the potential for a Muslim to be influenced by the corrupt environment, but if the Muslim is certain that he will be safe from these evils, then there is no harm.

As for working on ships, if the contract is for something permissible, then there is no objection. However, if it is for something forbidden or involves assisting in something forbidden, then it is forbidden.