Director of Tiny Matter, a tiny app design and development studio in London. Publisher of Signal Chain, a weekly round-up of interesting links for bitcoin and cryptocurrency enthusiasts and creators. Previously I was the co-founder and CTO of CodeSchool.com, creator of Try iOS and worked on other courses and content such as Try Objective-C, Rails for Zombies, Try Ruby and a bunch of other Code School courses. Developer of Qiktionary for iOS.