I have been strongly focusing on native Android development for the past six years.

My Android skill set includes:

• RxJava2, Room SQL, MVVM architecture, retrofit2
• Firebase
• In-app purchases, SQLite, Google Cloud Messaging, Analytics, NFC, AdMob
• Third-party libraries: Apache POI, Zxing
• Material design
• Android Studio, Gradle

Frontend:

• React, Javascript, Datatables
• WebSockets

Backend:

• node.js, PHP
• APIs: Maps, Facebook, Dropbox, Slack, Stripe, MsTeams, AWS