Flutter Push Notification Repair

I'm seeking an experienced Flutter developer to fix push notification issues on both iOS and Android platforms using Firebase Cloud Messaging (FCM). We're currently facing problems where notifications are not consistently received.

Key Requirements:
- Expertise in Flutter and FCM
- Experience with iOS and Android push notifications
- Ability to troubleshoot and resolve intermittent notification issues

Ideal Skills:
- Strong background in mobile app development with Flutter
- Familiarity with Firebase and push notification services
- Proven problem-solving skills and attention to detail

Please provide relevant experience and a brief plan to address the issue.