Mark Baker

Mark Baker is senior software engineer at MessageBird, but also serial contributor to the PHP community. He maintains the PHPOffice library and is also the person responsible for Enfys, the Rainbow elePHPant.

Wim Godden

Wim runs the Belgian web development and training company He is also an organizer at the BrusselsPHP usergroup and can be found at conferences on a regular basis, mostly on stage to deliver one of his many talks. 

Gary Hockin

Gary is developer advocate at Twilio, has previously associated with companies such as Jetbrains and Roave and is a regular speaker at conferences. He lives in Wales (not England!) in the United Kingdom and is an all-round nice guy.

Jelrik van Hal

Jelrik van Hal is a software developer, scrum master and agile coach who is currently freelancing. His focus has always been on creating good software but more importantly improving the current situation. He also delivers training and workshops on event storming and liberating structures.

Jeroen de Jong

Jeroen de Jong is serial entrepreneur, software developer and scrum professional. He's been moving away from the development side a bit more in recent times. He runs his own company Allict with which he helps companies as a scrum master, agile coach, solutions architect or IT consultant.