Vasconcelos Helder :
Helder Vasconcelos is a Portuguese Software Engineer based on Dublin, Ireland, with more than 10 years of experience designing and developing real-time/multithreaded Java and C++ applications for the telecommunications and aviation industries. Apart from his day-to-day job, he occupies his spare time building native Android applications for Bearstouch Software and other third-party companies. He graduated with a degree in Electronic and Telecommunications Engineering from the University of Aveiro in January 2006. During his career, he has worked as a Software Engineer for companies such as PT Inovao (Portugal), Airtel ATN (Dublin, Ireland) and Axway (Dublin, Ireland). You can find Hlder on LinkedIn at https://www.linkedin.com/in/heldervasc or on his website at http://hvasconcelos.github.io.Liles Steve :
Steve Liles is a self-confessed geek and has been an Android fan since the launch day of the G1. When he isn't at work building publishing systems and apps for newspapers and magazines, you'll find him tinkering with his own apps, building 3D printers, or playing RTS games. He is currently working with a start-up to build an advertising system that links the print and digital worlds using computer vision on Android and iOS devices.