Integrate AdMob Ads into LibGDX Game

I'm in need of an experienced Android Libgdx Game developer who can integrate two types of AdMob ads into my Android game build with LIBGDX.

Ad Types:
1. App Open Ad: This ad will be displayed when the user launches and re-entering the game.
2. Banner Ad: This ad will appear at the bottom of the main game screen. (Only the game screen)

- Ad Placements: The placements for the ads are already defined in the game code.
- Ad Triggers: No specific ad triggers apart from the mentioned ones are required.
- Backup Strategy: If an ad fails to load, a backup ad should be loaded.