David is a Developer Advocate at StreamNative and distinguished Apache Pulsar committer, recognized globally for his expertise in real-time data streaming, messaging systems, and big data technologies. As author of "Pulsar in Action" and co-author of "Practical Hive," he has established himself as a leading voice in the streaming data ecosystem.

An accomplished international speaker, David presents at conferences worldwide on big data, streaming technologies, and agentic AI, sharing insights that enlighten audiences globally. His technical contributions extend beyond speaking, as he actively contributes to Apache NiFi and maintains his committer status on Apache Pulsar, directly advancing these critical open-source platforms.