Video Conferencing

I am planning an startup company and looking for Freelancer who can help me build an operational API for my Video conferencing solution. Our requirements are as under: Sr.# Module Name 1 One to One Video Conferencing (using Webrtc/Mobilertc/??) 2 One to Many Video Conferencing (Group Chat and Webinar) 3 Record, Video meeting (before, during and after the call) Or Snapshot to the local drive, Drop box, Google Drive, Network Drive, etc. 4 Live Chat (Group Chat and one to one with host) in the meeting 5 Screen Sharing (Whole Screen or a single window) 6 Scheduling a Meeting (generate meeting ID and weblink, share on social media or individually) 7 Instant Meeting (generate meeting ID and weblink, share on social media or individually) 8 Live Streaming for webinar (with social media sharing) 9 Auto Video and Audio Quality Adjustment 10 Invite people from the meeting via, email, or copying the invitation text or social media 11 Auto highlight of the participant that is speaking. 12 Multiple Tiling Option of the participants on the screen 13 Host able to mute and un-mute participants 14 Host permission to Join (If any external user joins capture their data according to our requirement on popup before host permission) 15 Host able to close the participant's camera, however only the participant will be able to open the camera. 16 Create user, user registration and background picture setting (User Picture, Full Name, email address, mobile number, company name, designation, and default meeting password). 17 Speaker Statistics 18 Option to raise a hand (virtually for asking questions or grabbing the attention of the host). 19 SIP Integration 20 See statistics of the video conferencing activity 21 100% secure communication (end to end) We require Source Code (Operation based API calling/ Endpoint), API referencing (API input/output details), local deployment guide, minimum five (5) sessions with our technical team and complete cross platform (web/mobile/etc.) integration.