I'm professional developer and lead with huge experience in development complex, critical, distributed and high loaded systems. Primarily for government in energetic, industry and customs fields. Most of this systems working country-wide. I prefer challenging projects, that you, as my client, and I can be proud. My main experience linked with Java back end development, but also I worked with C++, Scala and Python. Besides I can make business UI with popular frameworks (ZK, GWT, Qt). At current time I specializing on algorithmic, knowledge-intensive tasks and complex server side development, Including networking, protocols, effective API, distributed systems, real time data handling, store, visualisation and so on. If you need something of this, you are in the right place - just contact me and all will be implemented.