Webinar Video Editing

I need a Zoom webinar recording edited with the following:

Requirements:
- Add an intro and ending slide
- Change background to a custom image

I need help finding a suitable professional and corporate-themed background image. Ideal skills and experience:
- Video editing expertise, especially with Zoom recordings
- Ability to source or suggest appropriate custom background images
- Experience with adding slides and changing backgrounds in videos

Please provide samples of previous work.