Jérôme Leleu is a software architect living in Paris, France. A consultant for 7 years, he has worked in many different companies, fields, and with many different people. He has participated in many IT projects as a Developer, Technical Lead, and Projects Manager, mostly in J2EE technology. Now working in a French telecom company, he is the Software Architect of the web SSO, which supports very high traffic from millions of authentications and users every day. He is involved in open source development as the CAS (web SSO) Chairman. For more information, visit http://www.jasig.org/cas. Interested in security/protocol issues, he has developed several libraries, one of which is, http://www.pac4j.org to implement client support for protocols such as CAS, OAuth, and OpenID.

Simone Renzo is a 19-year-old student of Computer Science at the University of Milano-Bicocca, located in Milan (Italy). He is mainly skilled in advanced C and Java programming, especially on the Android and Linux side. He works as an Android Apps programmer in various companies around the world, and likes to maintain his own Android custom kernel on several devices as well. Since he was a child, he has showed a great interest towards computer studies and PC hardware. He started working on Java and Android in 2010, and since then, he has improved his skills until being noticed by many companies and communities. Now he is also working as a Redactor for a blog named ChimeraRevo.com.

Dan Watling is a professional software developer for a major education software company with over a decade of experience. He has built many projects from the ground-up using a "test-first" approach. His software is continuously integrated with Hudson from the get-go. Throughout his career, he has always focused on delivering high quality products using a variety of different technologies on various platforms. When he isn't glued to a computer, he is busy playing with his kids Edward and Luca.