C++ WebRTC SFU Server (new module in advanced existing meeting platform)

looking for complete (100%) self-working independent freelancer to join existing team. 1. we already build complete Web based WebRTC solution, one of the most advanced solution in the market. 2. our solution using also our innovative WebRTC C++ client (Windows) that captures the host desktop & windows and streams in real-time to standard browser peers and even act as remote controller for those remote browser based participants. 3. we would like to build a server based c++ WEBRTC SFU (develop a new server from scratch, and not implmenting/customizing exsiting known solutions) to support large audience in room (10-100 participants) and also record existing A/V/SS streams in existing meetings, based on latest WebRTC c++ library used also by our broadcasting screen share client. 4. for WebRTC Signalling we use Frozen Mountain WebSync library who built upon The CometD / Bayeux protocol ([login to view URL]). SFU server will connect with existing peers using WebSync server protocols as well. 5. need also very good knowledge in modern WebRTC JavaScript, in order to tweak existing WebRTC mesh p-2-p implementation, in order to adapt and connect with new SFU use-case. 6. job is only for serious C++ coder who has lot of experience with both Networking and WEBRTC servers/clients on both Windows and JS. this job is not for WebRTC beginers... 7. C#/ASP.NET knowledge is big bonus. our server is written on ASP.NET dotnet 4.8/IIS. thanks.