Peter Holcomb has been working with Ext JS for several years, right from version 2, and has thoroughly enjoyed being a part of the Sencha community as it has grown. A tinkerer at heart, Peter tries to spend his free time on a variety of projects to keep his skills sharp and stay on top of new frameworks and technologies. He's currently a lead frontend engineer at SailPoint Technologies, Inc., a company that he's been fortunate to be a part of for over 8 years. He lives in Austin with his wife, Courtney, and two children and thoroughly enjoys breakfast tacos.

Girish Srivastava works as a technical associate at Vision Technologies, Bengaluru (formerly, Bangalore). He is a good speaker and an industry expert on data warehousing and web-based solutions and their implementations. He used to facilitate training sessions on different technologies such as Java SE/Java EE, JavaScript, Ext JS, IBM PureData System for Analytics (IBM Netezza), Perl/CGI, SAP BO, Tableau, and so on. Girish has worked as a technical consultant in the IT industry.

Thorsten Suckow-Homberg is a software developer from Aachen, Germany. He took his first programming steps with AmigaBASIC, peeked into Turbo Pascal, Modula-3, and learned to love the strange yet wonderful abstract world of object-oriented programming (OOP) with Java. Most of the time, he works on PHP/JavaScript-driven web applications, such as conjoon.com, of which he is the main developer. If he's not traveling around teaching JavaScript and Ext JS, you'll most likely find him in the woods, riding his mountain bike, or sitting in front of his desk, sipping coffee and engineering code.