FCM Integration for Push Notifications

I'm looking for an experienced developer who can integrate the new Firebase Cloud Messaging (FCM) with an access token to both my WordPress site and Android Studio Java app.

Requirements:
- Implement push notifications through FCM
- Set up notifications to trigger upon WordPress post publishing

Ideal Skills:
- Extensive experience with WordPress and Android Studio Java
- Proven track record in FCM integration
- Familiarity with push notification setups

Your role would be crucial in ensuring timely updates reach users on both platforms simultaneously, enhancing user engagement and interaction. Please provide examples of similar projects you've completed, and include any relevant references.