getusermedia cam and audio

I am looking for someone that can quickly add an option like zello in my chat room. my site already has a speaker option to post messages in the chat room using webrtc technology. However i want the message to be quick like the way zello [login to view URL] audio i have right now posts a message in the room where the user has to click play. However webRTC has release a fix to where getusermedia works with IOS 11 now and needs to be updated. Zello is a walkie talkie app that can be downloaded on andorid and ios phones. I need someone that is very qualified with webRTC and can create these options in my chat. My chat works off openfire. I need someone that has the ability to learn a site immediately, maybe some admin experience would be nice.