Can I work for conventional bank in an organisation

Assalamualaikum, I just want to know about can we work in conventional bank in an organisation where we have to work as fraud risk analyst where customers has file a complaint about fraud has happened to his her bank account then we have to do a research of fraud which is happened in the customer account and here we are not dealing any interest based transaction just we research the details and updating to the customer this transaction which was happened through your account is fraud. If it was a customers fault then customer have to bare his/her loss of the transaction or due to some technical issue or other things where customer fault is not there then we just update the details to customer it's not your fault then bank reverse the loss amount to customers account.