What is the ruling on working in the Central Bank in the departments of banking supervision, treasury, or accounting, and what is the ruling on auditing firms when they audit companies that deal with usury?

It is impermissible to work in any bank that deals with usury, whether the work is in the supervision, accounting, auditing, or any other department. As for working in accounting auditing firms, there is no objection to it if these firms do not audit for those who engage in forbidden dealings such as usury or other illicit activities. Otherwise, it is not permissible to work in them, due to the Almighty’s saying: (And cooperate in righteousness and piety, but do not cooperate in sin and aggression).