Mobile app made in UNITY required for wordpress website

I need a mobile app made in Unity for Android and iOs. I got website built on wordpress with html5 games and each post of this website is a page with the link which opens html5 game on the separate window. I need this app to source all data from the wordpress website and to be updated one the changes made on this site. I also need push notifications both for iOS and Android version of the app once the new game is published. This app should be perfectly optimized with the following Google technologies like FireBase and AdMob, so the rate of errors in these implementations should be close to nothing I need a responsible and communicative developer, with perfect Unity knowledge, who is always available to discuss my apps needs.