Good knowledge of Java, Android SDK, OOP
Worked with firebase, admob, google play, json, sqlite, xml, retrofit2, rxJava, REST API, gson, picaso, material design, socket, gps, services, notifications, broadcast receiver etc.
I know how to make requests to the server, optimize the application for tablets and other devices. There are applications on the gaming market.
https://play.google.com/store/apps/details?id=com.slipko1.aleksey.myapplication
https://play.google.com/store/apps/details?
id=com.slipko1.aleks.funnystories
https://play.google.com/store/apps/details?
id=alruiz.slipko.recipepuppy
6 months paired with senior android developer worked in the company for a large project "Imperium Lite" - to monitor employees
https://floor12apps.com/imperium.html
https://play.google.com/store/apps/details?id=com.apps.twelve.floor.imperium.lite
https://play.google.com/store/apps/details?id=com.apps.twelve.floor.imperium.paid