Database and application development, customers support
My detailed profile can be reviewed on the LinkedIn https://ua.linkedin.com/pub/valeriy-golubkov/8b/a38/374
Android Java back end and UI development.
Fast optimization and architecture reworks (based on logic refactoring and UML reviews).
In my projects I've worked with: Rest API, HTTP, Json, SQLite, Google Maps and Google Service. I have experience of working with device hardware: GPS, camera, gyroscope and Bluetooth remote control.
Some of my Apps can be found on the Market https://play.google.com/store/search?q=pub:Golubkov+Val