Whatsapp Bulk SMS Software System

We need an experienced programmer to build a high quality bulk sms and Whatsapp software for our website and install it on our server. The system could be based on open source and come with: - Dashboard - User Login/Account Management - Add Group - Add contacts - Schedule SMS/whatsapp - Import contacts from CSV/Excel files - Send SMS/whatsapp - SMS/whatsapp tracking - Keywords Management - Report 1. Ability to be installed and accessed via Desktop , Tab or Mobile phone 2. Send Whatsapp texts, images, video up-to 10,000,000 subscriber mobile numbers 3. Ability to upload mobile contacts from Excel , CSV , or txt file 4. Ability to send whatsapp texts, images, video to 10,000,000 users within 30 -120 mins 5. Ability to check mobile number and verify mobile installed with Whatsapp 6. Ability to avoid spam filters from whatsapp servers 7. Full reporting analytics on delivery reports , open rate , click rates, how many phone numbers have whatsapp, how many whatsapp are successfully sent, how many are not sucessfully sent, by source with ability to convert reports to PDF , Excel , CSV 8. Whatsapp texts, images, video supported: text, .jpg, or .mp4, .avi, .mpg, any video formats that supported by Apple or Android) Bidder must be able to prove previous experience of doing similar project. Otherwise, don't bid. Thanks. Detailed requirements specification will be sent.