Marcel Kornacker is currently CTO and Co-Founder at Pixeltable and is notably known as the founder of Apache Impala and co-founder of Apache Parquet. He holds a Ph.D. in Computer Science from UC Berkeley, where he studied databases under Joe Hellerstein. His career includes founding several startups, including Blink Computing, which provided data lake analytics as a service. He has also served as an Entrepreneur in Residence at both Sutter Hill Ventures and Coatue Management. Kornacker's expertise spans databases, data analytics, and open-source technologies.