Mark Dexter has been writing software since the 1970s. He cofounded and ran a commercial software company for 28 years before retiring to do volunteer work in open source software. Mark first started using Joomla! in 2008 and joined the Production Leadership Team in 2009. He has worked extensively in different areas of the project, including the user forums, Google Summer of Code, documentation and help screens, and the Bug Squad. Mark has actively participated in the Joomla! development process since 2009, including fixing bugs, adding features, and coordinating the release of new Joomla! versions. Mark lives in Seattle, Washington.

Louis Landry wrote a large part of the Joomla! framework for version 1.5 and 1.6, and he has been a major design architect for Joomla! for more than five years. His first experience with computers was playing on a 286 with Basic at his father's office. Louis has programmed in many languages, ranging from low level x86 assembly to managed languages like Java and scripting languages like PHP. He was a founding member of his university's robotics team. Louis is a car nut, and enjoys working on them in his spare time. He lives in Silicon Valley in California.