Build a Software Developer

Hello I need a somebody who can edit this software [login to view URL] and add more modules OR CREATE SOMETHING LIKE THAT I need: SYSTEM DEVELOPMENT FOR ACADEMY 1. Administration Billing system Tuition, Tuition, tuition payments and with the option to create new products to be invoiced. Note: Some products are discounted, please create an option for the main administrator to place the discounts that will be applied. 2. Database linked to the billing of the registrations (that is to say when enrolling the system request all this information. Name (first and last names), ID number, Age, Email, Mobile number and Home telephone number, Address of the house, all necessary contact details. In addition to handling notes in examinations, quices, attendance and excused absences. 3. Accounting: Entry of money (tuition and fees) Exit of money, payment of teachers, purchase of supplies, purchase of books, payment of advertising and others. 4. Inventories: To be able to have a count of the assets of the company: example. Computer, Miniprinter, printer, books, CDs among others. At the academy free books are delivered to each student, but you will need to have control over them so they do not go astray. This would be controllable through an inventory system. 5. Collections: Each student is assigned a collection date, if this date is passed and the student has not canceled, please have the system generate a note informing which students are overdue or that there is a way in which The system extracts in an Excel the status of all the students. 6. Create an option for teachers to verify classroom assistance through their cell phone. 7. Then generate some section where the students, parents can see the notes and the progress of the people who are studying. I need something simple, easy, with option change the language preference English/Spanish