Help to specify and select opensource Video Conference solution

I am looking for an expect in Video Conferencing applications using webRTC to help me select and then build an appropriate Open Source solution (see https://www.findbestopensource.com/product/openmeetings) to integrate with an Assessment Centre Administration application that we have already developed.

The process will consist of two parts ...

Part 1 - Specify and Select an Open Source solution that meets our criteria. This will involve working with us to write the specification, test and recommend the appropriate software for the project, and estimate the man hours required to build and test the solution. I believe this to be between 8 and 10 hours work.

We will need the following basic features ...
i)Different "rooms" from a large plenary room for all attendees to break out rooms for small groups (up to 12 people) and one on one interview rooms
ii)Selective recording of rooms and individuals
iii)Whiteboards, videos, screen sharing, file sharing, polls and messaging
iv)Attendee verification and audio/video confirmation
v)Schedule system to enable the flow of the Assessment Centre and modify as required
vi)Individual/Group management of Video/Audio/Messaging
vii)Autoscaling to allow instant initial connection and then scale resolution as appropriate for the bandwidth available
viii) Ability to work with/round VPNs

Ability to run the complete solution on our own servers without any need for any 3rd party involvement

Part 2 - Build the solution.
Once the system specification has been agreed and signed off, then we would need you to build the solution and integrate with our current application.

This project is for Part 1 ONLY.

In order to be selected for this project, you will need the following experience and skills ...

1) Excellent written and spoken English
2) At least 8 years full stack LAMP coding experience
3) Proven experience of implementing at least two Open Source webRTC solutions
4) Be available for Part 2 (most probably starting Jan 2022)

Please write outlining how well you fit each of the 4 requirements above. Please be selective in the information you send, making it specific to this project. I do not want to see a list of 50 URLs or similiar generic information. Make it easy for me to read and select you!

Part 1 will be a fixed fee of £250

To ensure that you have read this and understood it, please start your reply with the word "Blackpool". I get so many automatic, generic replies that I just won't read anything that doesn't prove you have read to the end ;)

Best of luck and thanks for participating

Chris