Loiane Groner lives in São Paulo, Brazil and has over 9 years of software development experience. While at university, she demonstrated great interest in IT. She worked as a teaching assistant for 2 and a half years specializing in teaching algorithms, data structures, and computing theory. She represented her university at the ACM International Collegiate Programming Contest, Brazilian Finals (South America Regionals), and also worked as Student Delegate of SBC (Brazilian Computing Society) for 2 years. She won a merit award in her senior year for being one of the top three students with the best GPAs in the Computer Science department and also graduated with honors. She has already worked at multinational companies, such as IBM. Her areas of expertise include Java SE, Java EE, and also Sencha technologies (Ext JS and Sencha Touch). Nowadays, she is working as Software Development Manager at a financial institution, where she manages overseas solutions. She also works as an independent Sencha consultant and coach. She has also authored books such as ExtJS 4 First Look, Mastering JS and Sencha Architect App Development for Packt Publishing. She is passionate about Sencha and Java, and is the CampinasJUG (Campinas Java Users Group) leader and ESJUG (Espirito Santo Java Users Group) coordinator, both Brazilian JUGs. She also contributes to the software development community through her blogs: http://loianegroner.com(English) and http://loiane.com (Portuguese-BR), where she writes about IT careers, Ext JS, Sencha Touch, Phonegap, Spring Framework, and general development notes, and also publishes screencasts.