For Java developers check out the Inside Java Podcast where we interview the folks working on the Java Platform for an inside look at important innovations (eg Loom, Panama, Amber, JavaFX, secure coding guidelines, contributing to OpenJDK, etc.)
I haven't found many that hit 100%, so subscribing to a bunch and allowing your podcast app to store say the "latest 3" is how I pick and choose the episodes I'm interested in.