Is there any doubt concerning working in a commercial financial institution that sells products, sends and receives parcels, processes wages, issues transfers for a financial discount, saves customers' money which automatically generates added interest, and performs accounting, statistics, and annual budget reporting?

It is not possible to rule on the company's dealings except after knowing their true nature. The aforementioned investment is permissible only with sharia (definition)-compliant controls, among which are that the funds should not be guaranteed by the company, and that the profit should be a common share, not a fixed amount. The apparent fields of the company's work are permissible, and working in it is permissible as long as the worker does not engage in or assist in any prohibited activity.