School Management System

I am looking for a school management system to be developed as a web application, that includes an integrated payment system and a user login feature. This system will help automate everyday and administrative tasks, allowing educators and students to engage in intellectual activities more easily. The system must be efficient and secure, capable of handling vast amounts of data, while providing the user a convenient and easy to use interface. This system should also be built in a way that allows for modification, scalability and future upgrades.