OTCBTC, a cryptocurrency exchange founded in Oct 2017, was developed with Rails. It grows rapidly and has reached hundreds million of dollars of GMV and millions of pageviews within only two months after being launched.And quickly become the largest OTC exchange in Asia. Its ICO had successfully raised the amount equivalent to series B funding. In this talk, Xdite will share how she and her team members struggled through the rapid growth of OTCBTC, the future opportunity in blockchain industry, and the challenge in developing such level of project. This is a sponsored talk by OTCBTC.