Hope you are doing well.
I can help you with that.
I have been working as a web & mobile developer for over 7 years and I am very familiar with pusher.com.
Let's discuss the requirements and reasonable budgeThêm
I have read your description and understood your requirement.
As you can see in my profile, I am WebRTC developer and have done chat system using pusher.
Please check my portfolio and reviews.
I am able to Thêm