Potsdam • Berlin • Germany

16-18 October 2026

Our Speakers

Brian Teeman

Brian Teeman is a long-standing member of the Joomla community, known for his outspoken views, dry British wit, and unwavering commitment to open source. As one of the original co-founders of Joomla, he has spent over two decades helping to shape the project, not just through code, but through advocacy, leadership, and a refusal to accept mediocrity.

Over the years, Brian has worn many hats: board member, community leader, event organiser, and frequent speaker at Joomla events around the world. He is passionate about the human side of open source — the collaboration, the community, and the messy reality of how things actually get done. His talks tend to challenge assumptions, question accepted wisdom, and encourage people to think a little differently about the tools they use and the communities they are part of.

Expect honesty, insight, and probably a few uncomfortable moments.

Website
https://brian.teeman.net
I'm from
Leeds, UK
Community Engagement
Joomla and OSM Co-founder

Our Speakers

Laura Gordon

Laura Gordon

JUG (Joomla User Group) Team, JDAYUSA Coordinator

United States

Mario Fraune

Mario Fraune

Austria, Vienna

Sigrid Gramlinger

Sigrid Gramlinger

Production Department Coordinator & JWC Organization Team

Austria

Maarten Blokdijk

Maarten Blokdijk

Speaker on events, organiser of JUG events

Hellevoetsluis, Netherlands

Rachel Walraven

Rachel Walraven

Teammember CMS Release Team

The Netherlands

René Kreijveld

René Kreijveld

Developer and Joomla enthusiast

The Netherlands

Yannick Gaultier

Yannick Gaultier

JoomlaDay FR organizing and video team

France

Martin Kopp

Martin Kopp

Release Manager 6.2 - Team Lead Bug Squad

Switzerland

Philip Walton

Philip Walton

Release Manager 6.0

Gravesend in Kent, England

Nadja Lamisch

Nadja Lamisch

Teamlead Social Media, JWC Organization Team

Germany

Harald Leithner

Harald Leithner

Release Manager 6.2, Security Team, JWC Organization Team

Austria

David Jardin

David Jardin

Team Leader Security Strike Team

Germany

Viviana Menzel

Viviana Menzel

Team Leader Accessibilty & Usability

Germany

Benjamin Trenkle

Benjamin Trenkle

Team Leader CMS Maintenance Team

Germany

Marc Dechèvre

Marc Dechèvre

Author of numerous presentations about Joomla

Belgium