API expert needed ASAP - Will Pay

I had a web app created using jitsi. I have a company wanting to integrate with my app, so I need someone with indepth knowledge of the API to be with me in a meeting. The meeting is Sunday, December 13, at 4:00 a.m. eastern standard time in the US.

Is there anyone that can help me out? I will pay for your time. Must be able to communicate in English.