julienledem

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Apache Parquet co-creator. OpenLineage and Marquez (LFAI&Data) Apache Arrow, Iceberg, 🐖 PMC.

Funding Links: https://github.com/sponsors/julienledem

• Name: Julien Le Dem
• Location: Berkeley
• Kind: user
• Followers: 316
• Following: 49
• Total stars: 211
• Repositories count: 62
• Created at: 2022-11-03T02:43:43.154Z
• Updated at: 2025-03-09T21:27:24.427Z
• Last synced at: 2025-03-09T21:27:24.427Z

GitHub Sponsors Profile

I am a software architect, open source leader and entrepreneur who loves collaborating with others in Open Source projects. I started the Parquet project in collaboration with the Impala team at Cloudera back when I was at Twitter. I chaired the project for many years at the Apache foundation and Parquet is now the de-facto standard for data lakes. I later contributed to the creation of the Arrow project as a founding engineer at Dremio. Before that I received my initiation contributing to OpenSource in the Apache Pig project at Yahoo where I evolved from contributor to committer to PMC member and eventually chaired the project in 2013. More recently I started the OpenLineage project while being the CTO and co-founder of Datakin which was later acquired by Astronomer. OpenLineage came out of Marquez, the project we co-created at Wework on the data platform team.
I currently lead the OpenLineage project, facilitating discussions, ensuring all voices are heard and empowered and growing its ecosystem.

• Current Sponsors: 0
• Past Sponsors: 0
• Total Sponsors: 0
• Minimum Sponsorship: $1.00

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