Digital electronics, Microprocessor and Microcontroller, Automation Engineering. PLC, SCADA, CAD/CAM Third party Interface (Modbus/OPC/Profibus), Field Instrumentation, pipeline SCADA and various applications. WinCC, WinCC Flexible, Step7, Tia Portal, PCS, Intouch, ZenOn, Genesis, IFix, Cx-Designer, Omron HMI, Mitsubishi HMI, B&R, Backhoff, Shnaider Electric, GE.