Hantsy Bai is a self-employed freelancer and provides professional Java EE development and consulting service for customers around the world. In the past years, he has participated in many projects in different industries, including telecommunication, e-commerce, electric government management, office solutions for medium-sized and small enterprises, and so on.

He is also an open source practitioner and always likes to taste the new technologies. Working in a company and always keeping up with the popular technologies was impossible, so he quit and worked as a freelancer 4 years ago. This is when his field of vision became wider.

He has written a lot of blog entries about the popular and non-popular open source frameworks and tools. He is active in several Java communities in China, and also a troublemaker in the JBoss.org discussions and has posted many problems he encountered when he was using JBoss products in his projects. In 2012, he received the JBoss Community Recognition Award.

He likes traveling, climbing mountains, and currently lives in Guangzhou, China.

Jakub Narloch is a software developer with over 4 years of professional experience. He graduated in Computer Science at the Warsaw University of Technology with an MSc degree. Currently, he is working as a Software Engineer for an international company. During his career he has been mostly developing JEE and ASP .NET web applications. Besides that, he has a lot of interest in open source projects and contributed code to Arquillian and to other open source projects such as Spring OXM.