Marius Jansen is COO at Deribit, crypto enthusiast, ex-crypto trader. Interested in Bitcoin since 2012 and soon after that he started trading on various crypto currency exchanges. While many of his friends where trading on "normal" stock exchanges, Marius grew into trading cryptocurrencies on a daily basis in early 2013. Mostly market making and arbitrage. In the early days he was responsible of a decent amount of the total bitcoin trading volume worldwide. As an experienced (ex-)crypto trader Marius was closely involved in the development of the platform, after all he is John's younger brother. In 2016 he joined Deribit and in the beginning of 2017 he quit trading to join the Deribit team on a full time basis. Marius: "It feels really special to be working on this project. We are doing things quite differently compared to other exchanges and it's really interesting to see how this will develop. I can't wait to see what the future will bring and what we can offer to the Bitcoin community world wide."