Jeroen Hooyberghs is an open source and Linux enthusiast, available as consultant at Open-Future in Belgium. In this position, as well as in previous jobs in Linux system administration, he built his technical expertise in a lot of open source solutions. In the last couple of years he's been focusing on system automization and configuration management, mainly using Puppet. Since 2014, he's been a Puppet Certified Professional and Puppet trainer.
As a technical reviewer, he contributed to other Packt Publishing books, such as Mastering Puppet by Thomas Uphill and Puppet Cookbook by John Arundel and Thomas Uphill.