There’s often lots of talk about how companies can make their developers more productive. But it may be more useful to think about developer effectiveness: how to ensure they’re building the most useful products for their customers. This isn’t about working longer or harder or hiring smarter people, it's just working smarter, using your time better and making sure that the company is providing that environment that allows developers to be effective. Our special guests from Spotify and Etsy give us their unique perspectives.