Need Suggestion for ATM System project in c# [on hold]

Need Suggestion for ATM System project in c# [on hold]

I had been working on a ATM management system in c# desktop application. I
have planned to enhance that project. I wanted to make a front-office
system and back-office system. What I mean is: The front-office system is
the ATM GUI for the customers and the back-office system is the system for
the bank staff. The back-office system will be used for recovering ATM pin
in case the customer loses it and other tasks which are done in the banks
like depositing money etc. So the front-office and the back-office systems
are using the same database.
But I have a doubt Can I implement both these system using desktop
application and yet be connected to each other and share the same
database.
Any solution or reference will be highly appreciated.
Thank You