We are looking for some one who can find an open source project for a whatsapp like chat Application and do a bit of customization to integrate to our existing Android & iOS Mobile Apps. We have Android & iOS developers, just need some one to guide us to integrate the chat feature to our existing platform.
Public chat rooms
Private chat one-on-one
Private group chat
Users should be able to send files through chat.
Priority is public chat rooms with file sharing. Private chat can be a later thing.