Is it permissible to work for a computer company overseeing the repair of hardware malfunctions for a usurious bank, knowing that the salary is paid by the computer company? And does the ruling differ if the work includes other clients in addition to the bank?

It is not permissible to work for this company as long as the work involves supervising devices for a usurious bank, whether the work is limited to supervising this bank or includes others, due to the generality of Allah's saying: "And cooperate in righteousness and piety, but do not cooperate in sin and aggression." And due to the hadith: "Allah cursed the one who consumes usury, the one who feeds it, its scribe, and its two witnesses." Thus, the punishment is not limited to the one who consumes or feeds it, but extends to whoever assists in usury.