C Programming- C, C++, Assembly RTOS- SYSGO PikeOS (recent), freeRTOS, Micrium uCOS-II, Vxworks5.5 Controller Platforms- Cortex M4, Blackfin DSP, ST ARM9, 32-bit PowerPC, TI MSP430 Low level drivers - RS485, CAN, SPI, USB2.0 Industrial Communications - CANopen, Modbus/DNP3, IEC60870-5-101, T103/104, IEC61850 Configuration management: ClearCase, Serena dimensions CASE tools: DOORS, Artisan Standards:EN50128, IEC61508-3, MISRA C 2014 Static Analysis: QA-C, PC-Lint