Hello,
I have experience with Atmel Studio, especially ASF. Also I have a long experience in Arduino involving Arduino based quadrotor, low power designs, racing robots, multiplexed I/O and other.
My Atmel Studio experience includes high speed comunication and fast data processing, ADC, DAC, audio processing in real time, and Mbit comunication using Xmega RISC cores.
I have an Arduino Zero at hand so I can test any code related to SAMD21 core, of course written on Atmel Studio.
However if you can provide more information on what is to be coded, as software, I will be happy to give you a plan and, if it's easier than I expect, a better price.
Best Regards,
Mihail Vrachanski