Freeswitch Auto Dialer for Voice Broadcasting

I am looking for an experienced FreeSwitch engineer who can work with latest freeswitch version with SIP Trunks to do following tasks I will be passing destination number , CLI , ring duration , max call duration , audio file , unique call id to Freeswitch (JSON API) , the dial plan should start dialing numbers and plays a voice file when the call is connected and once the duration of the voice clip ends the cal should be disconnected automatically. This will be used as bulk voice broadcasting service for marketing purpose. CDR need to be saved in DB with call id passed by me with call status Should be experienced in setting and configuring SIP Trunks with Freeswtich Should be experienced in deep troubleshooting of Freeswitch Should be experienced in balancing load across different freeswtich instances to scale up The system should support 1000+ concurrent calls Should be well versed with optimisation of freeswitch, installation, configuration , fine tuning and security patches Only engineers who have done similar projects need to be be applied and its an urgent requirement so priority will be given to any ready to use projects