Sidney eats, sleeps and breathes all things mobile as StackMob's Platform Evangelist. Prior to joining StackMob, Sidney immersed himself in the world of payments as the primary Developer Evangelist at PayPal. He enjoys writing code and sharing it with others. Previous speaking engagements include the Dutch Mobile Conference, Adobe MAX, SenchaCon, HTML5DevConf, FOWA, Silicon Valley Code Camp. Sid has created three courses, covering StackMob, iOS, Backbone.js, jQuery Mobile all on the uDemy.com platform. He also organizes the Bay Area Mobile meetup.