Embedded programming in either C or C++. This is low level programming and includes hardware drivers and other low level interfaces. Typically does not deal with OOP (Object Oriented Programming) and other advanced language features for sake of simplicity, program size, RAM usage, and performance requirements. With most SoCs including Atmel, PIC, and Arm as well as PSoC I am comfortable working with low level peripherals such as timer/counter modules, interrupt handlers, peripheral interfaces, and memory management.