This is the keynote talk I gave at the BBC Develop conference in London, UK in November of 2013. In it I talk about what I believe makes a strong engineering culture, how to protect it if you have it, and how to fix it if you don't. I use a lot of examples from Spotify (where I am a Director of Engineering). As usual, I go a bit light on the bullets, since I prefer to talk, but I think you can still get the gist of my points.