I'm a software designer, with a career that spans design and engineering, focused on human-computer interaction and data. In the past I was a teacher at IPCA, a member of J++, founded and built Marchiver - funded by Google, designed at Postcrossing and was a scientist at Fraunhofer. Sometimes I publish books, take photos and wander around. Listen to music, write tweets, keep lots of bookmarks and should definitely open source more. You can send me an email.