Stefan is an entrepreneur and developer who became interested in Bitcoin in 2013. He started his own Bitcoin startup Fairlay, one of the leading prediction markets using Bitcoin today. Previously Stefan worked at tech companies in Silicon Valley and at Berlin-based startups. After finishing his Master’s in CS he decided to travel Asia for a year in 2014 and started Gnosis afterwards working from Berlin. The first alpha version of Gnosis was released just one week after the launch of Ethereum.