Asterisk Box integration of PHP AGI

We require someone who can integrate php agi in asterisk box to replicate the similar commands to control dialplan as given under below link here,

https://www.twilio.com/docs/voice/twiml

To enable our customers to run their own IVR using API and SDK

Architecture using Cent OS, LAMP framework, Asterisk and PHP-AGI

User Accounts connects using API and run their own IVR business logic Our VoIP Arch -> Connected to multiple sip endpoints for each users on their account.

I need some one who can help me setup an asterisk on linux machine probably in some better datacenter such as aws or azure that could run behind an proxy public ip for client server connection.
And than use php agi to develop an sdk that could send and receive rest api and xml commands for controlling ivr dialplans for different users that would be connected in our subscription based billing system to run use the api to connect different sip channels they add in their account and use their app and websites to connect and control the ivr diaplan in their ivr.

We also need to make sure that users on our subscription are able to add sip channels they own and control.

Let me know if you have any questions.

BR