can this project be done with C#?

Question

Hello everyone.

I am considering starting a new project for my bank and need you advice.
The project is about the ATM transactions: the bank needs them displayed on the map of the city (preferably live, i.e. with minor delays).
In other words, we want to attach our ATMs to on an online map and to monitor transactions live.

Now, the final product should be an application (either web or not - we have not decided yet).
As far as I know, C# allows to implement both.
The transactions data will be either in .xml or .csv files (C# can process both).

The quesiton: can this project be implemented with C#?

Thank you in advance,
Maksym