Need someone to create a short and simple animation for facebook

I am looking for someone to create a short animated video which will be used as a Facebook advert. The script is as follows:

Screen 1:
Need help from an expert "food scientist | statistician |scientific writer | medical writer |researcher?"
[Each "word" will look like its being typed out on a computer, deleted and then replaced with the next word. You can see similar concept on our home page: https://www.kolabtree.com/]

Screen 2:
Post your project for free and we’ll find you an expert in 24 hours!

Screen 3:
Kolabtree.
The world’s largest platform for freelance scientists

Screen 4 (final screen):
Post your project for free
[make "Post your project for free" a clear call to action using a similar green button style to our website]

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Guidance notes:
- You must be able to provide examples of similar work in order to be considered
- Use the specifications here: https://www.facebook.com/business/ads-guide/video
- Aim for length around 15 seconds (it needs to be fast and impactful)
- Use typefaces and style similar to https://www.kolabtree.com/
- I don't think we need any images (apart from logo) in the animation but will take your advice