Gabriele Armao works at Systematica, which is a Zabbix Premium Partner company that has always implemented system monitoring infrastructure. He chose Zabbix and developed many tools and scripts around it. He became a Zabbix-certified specialist on large environments in November 2010. In November 2012, he decided to move ahead and became a certified Zabbix trainer. For more information, visit the website at http://www.gruppofinmatica.it/zabbix/.

Jean-Jacques Martrès is an experienced IT professional who has a solid background (more than 10 years of experience in various ISP and carriers), both from a technology perspective as well as from a business perspective. For any architecture and technology, he can identify the needs and develop new high-value services. He is a self-made man and fast learner. Jean-Jacques specializes in building visions for what technology can make possible, how it will impact a company's business area, and how to obtain the maximum value from such changes.

Besides using and deploying Zabbix in different environments, he is also a maintainer of a great collection of templates. They are available at https://github.com/jjmartres/Zabbix/.

Renjie Yao lives in Shanghai and has worked for eBay (as an intern), PPTV, and Vipshop (since 2011). Vipshop (http://www.vip.com/; VIPS in NYSE) is one of the biggest e-commerce companies in China. It operates as an online discount retailer for various brands. Renjie is a full-stack engineer, who loves backend architecture and frontend visualization work.

At PPTV, he was in charge of Zabbix and he fixed bugs in the Zabbix kernel on Oracle. He worked on real-time calculations and architecture design on big data. Nowadays, his main focus is on machine learning, which is used to diagnose issues by machines, not human beings. Renjie is also the author of Deep into Zabbix, written in Chinese.