The biggest red flag to me is the confident claims about where the money is going. I really don't think it's plausible to any extent that a backend developer for a major app would have any idea whatsoever to what account any particular fee is being deposited (they might know the account number if they worked on that area, but knowing that the account represents a legal fund or whatever is extremely unlikely).
You don't need to know the account or account number, just need to know the transaction logic, which most backend developer will know of as long as they work in that area.
If the product managers keep boasting about their new strategy (which I have seen in almost all companies I have worked for), even the juniors will know what's going on.
