Anything by Bryan Cantrill, David Beazley or Joe Armstrong
Bryan Cantrill - Leadership Without Management: Scaling Organizations by Scaling Engineers ((but really about Larry Ellison being a lawnmower...) https://www.youtube.com/watch?v=bGkVM1B5NuI
Joe Armstrong - React 2014 : Joe Armstrong - K things I know about building Resilient Reactive Systems ("What is on the wire?" Talks about protocols and other interesting things) https://www.youtube.com/watch?v=rQIE22e0cW8