I am an android developer having more than 4 years of experience developing android apps. I have worked on the following components in android.
1) System-level Applications
2) Socket.IO
3) Android KIOSK and MDM
4) Android JetPack
5) MVVM architecture
6) Dagger and Hilt
7) Navigation Components
8) Push Notification
9) Material Design
10) Fire-base
11) Retrofit
12 ) Ad-mob integration
13) Map/GPS
14) Encryption Techniques
14) Authentication using Gmail, Facebook, Twitter, and Phone
15) Third-party APIs integration
16) Payment gateway integration
17) SQL-lite Database using Room
and many many more with timely delivery and proper communication.