Upgarde the billing system (BSCS) from the release 4 up to the release 17 where this system is responsible to handle all the billing operations for the customers. This project includes:  Automate the manual processes to avoid any error could happen, Enhance and re-engineered the billing processes on the upgraded system and Test all the upgraded procsses.
By this upgrade, the performance has become higher.

Implement the Multi-Loan Product that allows the customers to being able to loan a units multi times when they don't have enough units to use any service, and then return the debt within specific time of period.
The development of this product was starting from gathering the requirements ending to the testing.

Implement the features on the billing system. where these features allow the users of the system to generate the invoices automatically. As a result, avoiding any error and ensure the accuracy.