FOSDEM is the biggest free and non-commercial event organized by and for the community. Its goal is to provide Free and Open Source developers a place to meet. No registration necessary.

   

Martijn Verburg

Martijn Verburg (CTO - TeamSparq) has over 10 years experience as a
technology professional and OSS mentor in a variety of environments
from start-ups to large enterprises. He is the leader of the London
Java User Group (LJC), and leads the global effort of JUG members who
contribute to JSRs and the OpenJDK. Martijn's first book "The
Well-Grounded Java Developer" with Ben Evans is being published by
Manning. As a leading expert on technical team optimisation, his talks
and presentations are in high demand by major conferences (JavaOne,
Devoxx, OSCON, etc) where he is known for challenging the industry
status quo as the "Diabolical Developer".