Daniel Doubrovkine (aka dB.) is a seasoned entrepreneur and technologist, CTO at Artsy.net in New York, working on bringing the art world online. He is a maintainer of multiple popular open-source projects, including Java Native Access, Ruby Grape, Hashie and the popular Slack Ruby client, bot and server libraries. Daniel graduated from University of Geneva in late 90s and founded and sold Vestris Inc., an early stage technology start-up right after college. He joined Microsoft as Development Lead, was Director at Visible Path, then Architect and Development Manager at Application Security