Sebastian Bergmann Sebastian Bergmann, creator of PHPUnit, is an internationally sought-after expert who has played a vital role in professionalizing the PHP community.

Arne Blankerts Arne Blankerts has created solutions far ahead of the times already years ago, and finds security issues with magic intuition.

Stefan Priebsch Stefan Priebsch has been finding sustainable solutions using a unique blend of new ideas and proven approaches for over 20 years.