Creating a professional video for a medical seminar streamed on YouTube - native Hungarian freelancer required

I’m looking for a talented Hungarian videographer, editor or producer who would be able to create the a 20 minutes medical seminar video for YouTube. We already recorded the speaker in front of a green background, from two angles. professional video quality, separate voiceover. What I’m looking for someone with bright imagination, 3D/2D graphic design experience who is able to create a professional video based on the topic and content the presenter talking about. You would have a complete freedom with the graphics and callouts but obviously it has to be in sync with The presentation content.