What is the ruling on working as a driver for a manager of a usurious bank, knowing that the nature of the work does not exceed driving the car and transporting the manager and his usurious financial documents?

It is not permissible to work in this job, because working in an interest-based (usurious) bank is not permissible, whether in accounting and record-keeping, or in security, cleaning, and driving. This is because all of these activities constitute assistance in usury, and Allah Almighty has prohibited assisting in sin and aggression. It is also not permissible to drive the bank manager to and from the interest-based bank, because that is assisting in evil.