Oliver is a TYPO3 extension developer and workshop trainer. He has been giving workshops since 1999 and has been teaching test-driven development with PHPUnit since 2010. He also wrote the first unit tests for the TYPO3 core. This is why people at TYPO3 events sometimes greet him with: "Oh, you're the unit testing guy!"
In the TYPO3 community, he is active in the Ombudsperson team, the task force for establishing best practices for extension development QA, and as task force lead in the TYPO3 Trainer Network. In the past, he also participated in the TCCD task force and the security team.
He enjoys singing (and is workings towards singing power metal) and cooking fictitious dishes from computer games and television series.