Marcus Müller
Born a social Electrical Engineer, Marcus was raised on coffee and highly concentrated nerdage by communications engineers in a very FOSS-friendly university lab.
His expertise includes theory and practice of Software Defined Radio, channel effects, transmitters and receivers, synchronization, detection, decision, FEC, and all things signal. He leads a secret second life as a contributor to Free and Open Source projects such as GNU Radio; he's been architect and took the software lead role of large SDR software projects. Currently, he's working as a freelancer.