I have over 4 years of commercial programming experience, including 3.5 in Java. 2+ of them were development for Android platform. These included using of concurrency, web services, databases, version control systems such as SVN and Mercurial, web front-end technologies (Phonegap). I'm familiar with Material Design.
I've been working on 4 big projects in Android:
1) Magisto (https://play.google.com/store/apps/details?id=com.magisto) - multimedia project, extensive work with UI, social media integration, parallelism.
2) Intapp Time (https://play.google.com/store/apps/details?id=com.intapp.time) - dealt with sqlite database, JSON, custom UI views, Material Design.
3) Aon Dashboard (not listed in Play Store yet) - not so big app as previous two, but it was the first project I did on my own. The whole app was implemented using Material Design guidelines.
I'm an experienced user of version control systems, such as SVN as Mercurial, both from GUI and Command Line.
Also I have a smaller experience in JavaEE. Technologies used: Spring, Servlets, JPA, PostgreSQL, front-end development.
I'm familiar with software design patterns, have strong understanding of OOP.