Welcome,
This would be my first project but I am sure I can handle this. As far as I understood, You need an application that will sort users and their deliveries by cities, and than provide information about optimized routes, and delivery schedules.
I can build a web application that will solve that problem. It can display daily deliveries, history of deliveries, searching user data or display a map. I can also be customized for mobile devices.
If You decide to work with me, please write me a message with more details.