Derek is a researcher at Cardiff University in the Centre for High Frequency Engineering. His focus is on high efficiency RF power amplifiers for wireless communications.

Before returning to academia, he worked at Ettus Research developing the hardware and drivers for Software Defined Radios. While there, he began contributing to GNU Radio and now continue to volunteer as a project officer. He is very interested in how SDR and Free and Open Source Software can make radios and wireless systems accessible to hobbyists and students.

When not working on engineering topics he plays the fiddle, cycle, and bake.