The New York Academy

We need a custom designed backend class management software for our coaching institute http://thenewyork.academy/. Frontend design is done in WordPress. We need features like
Login/Register
Add Courses
Add Lessons(PDF, Jpeg, video link, word doc )
Add Teachers
Add Students
Add Admins, Add super admins
Managing Students Fees(Sending Reminder) etc.
Please send you proposals if you have relevant experience in creating a software for educational institute.