Biography: Matthew is a Senior Software Engineer in the Open Source Program Office at Aiven, where he contributes to upstream Kafka as well as a member of Apache Foundation and PMC of the ASF Pekko Incubator project. Before joining Aiven, Matthew worked at Zalando on returns, arguably the most business-critical part of the system (ask him about his experience there over a beer). Based in Berlin for over 5 years, he was born in Australia. Knows too much about Scala. Knows how to dance (Salsa). And loves vegetables because they don’t taste bitter to him (scientific term: beta carotene), which is great news because he’s vegan.