The person is responsible for deciding whether a borrower’s loan application is approved or not. Suppose a potential borrower applies for a loan from a mortgage, insurance, loan broker, or any other type of financial institution. In that case, it is an underwriter who evaluates the risk presented by the entire loan application. As part of the underwriter job description, they review credit history, assets, the size of the loan, the appraisal of the home for mortgage applicants, for insurance, and then decide whether to approve or decline the application based on the risk presented.