Android Expert Needed – Fix FCM Notifications & Optimize WebRTC Calls
Budget: €30 – €250 EUR
We need a senior Android developer to fix an issue with FCM high-priority data messages not triggering incoming call notifications on Samsung devices (and other OEMs with battery restrictions).
The app is already functional:
Web client makes a call → push notification → Android app launches call.
Problem: On Samsung (background/closed app), the notification doesn’t appear.
Tasks
Fix FCM + Foreground Service + Full-Screen Notification for incoming calls.
Ensure reliable call reception even under Doze/battery restrictions.
Optimize and clean up existing Java/Kotlin code.
Provide quick documentation + improvement suggestions.
Skills
Android (Java)
Firebase Cloud Messaging (high-priority data messages)
Foreground Service & Full-Screen Notification (Android 14+)
WebRTC on Android
Experience with Samsung/Xiaomi/Huawei background issues.
Freelance contract with milestones. Budget negotiable.
Long-term collaboration possible.
The app is already functional:
Web client makes a call → push notification → Android app launches call.
Problem: On Samsung (background/closed app), the notification doesn’t appear.
Tasks
Fix FCM + Foreground Service + Full-Screen Notification for incoming calls.
Ensure reliable call reception even under Doze/battery restrictions.
Optimize and clean up existing Java/Kotlin code.
Provide quick documentation + improvement suggestions.
Skills
Android (Java)
Firebase Cloud Messaging (high-priority data messages)
Foreground Service & Full-Screen Notification (Android 14+)
WebRTC on Android
Experience with Samsung/Xiaomi/Huawei background issues.
Freelance contract with milestones. Budget negotiable.
Long-term collaboration possible.