I have Experience with the following cores: MIPS, ARM7, ARM9 Cortex-M3/M4, Cortex-A5/A8/A9 in particular:
Microchip - PIC 12/16/18/30
Atmel - Tiny, Atmega, AT91SAM7, AT91SAMA5D3x
ST - STM8Sxxx, STM32F1xx, STM32F4xx
TI - omap35xx, Sitara (AM387x, AM335x)
Samsung - Exynos5 (S5PV210)
FreeScale - IMX537
PowerPC 405/440 on Virtex4/5
Knowledge С\С++, ASM, C#.
Experience with the following RTOS: FreeRTOS, uCOS-II, WinCE.
Working with lwip и uIP stacks.
Working with GUI from MicroChip GUI, Micrium ucGUI, Segger emWin (STemWin), STM32 embedded GUI library
Experience with ZigBee network (usage CC2520, CC2530 with Z-Stack and ZBOSS stacks)
Experience with Mifare and GEN2 tags
Work with a BLE: CC2540(TI) and BlueNRG (ST)
Common knowledge of VHDL
Common knowledge of cryptography.
Used Git, SVN, RedMine, DoxyGen.