What is the ruling on working in the "Youth Employment" program, which is affiliated with usurious banks, knowing that there is no other source of livelihood, and is it permissible for a friend to work with him in the same job, as he is in need of it?

The ruling on working for someone depends on the source of their wealth. If all their wealth comes from unlawful sources, such as usury (riba), then it is impermissible to work for them. However, if their wealth is a mixture of lawful and unlawful, it is more cautious to refrain from working for them and to seek another job that is free from any doubt.