Long and wide experience in IT technology, including foreign companies. Last 13 years work as freelancer on RentACoder/vWorker/Freelancer/Elance/Upwork, but most jobs are long term projects without intermediaries. C/C++/Lua AWS, Docker, DevOps Complex server-side system design and implementation. Linux/Windows platforms. Embedded Linux (Beagleboard, Raspberry Pi, etc) Network programming. Multhithreaded programming. Design patterns. Embedded scriptable system( Lua/LuaJIT ). VoIP protocols family.