Gunnar Morling Built a New Parquet Engine with AI | Ep. 31

Confluent Developer ft. Tim Berglund, Adi Polak & Viktor Gamov

Confluent Developer ft. Tim Berglund, Adi Polak & Viktor Gamov
Gunnar Morling Built a New Parquet Engine with AI | Ep. 31
Jun 01, 2026
Confluent

Tim Berglund talks to Gunnar Morling (Confluent) about his career in open source Java and data infrastructure. Gunnar’s first job: a student PHP developer in AMD’s e-learning group. His challenge: building Hardwood, a fast, multi-threaded Parquet engine for Java with minimal dependencies.

► The One Billion Row Challenge blog post: https://www.morling.dev/blog/one-billion-row-challenge/

SEASON 2
Hosted by Tim Berglund, Adi Polak and Viktor Gamov
Produced and Edited by Noelle Gallagher, Peter Furia and Nurie Mohamed
Music by Coastal Kites 
Artwork by Phil Vo 

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