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Jianchun Xu

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Jianchun Xu is a Senior Software Engineer on Uber's Data Infra team. He mainly works on big data infra and data security. He also has extensive experience in service deployment platforms, developer tools, and web/JavaScript engines.

Engineering Blog Articles

One Stone, Three Birds: Finer-Grained Encryption @ Apache Parquet™

Overview 

Data access restrictions, retention, and encryption at rest are fundamental security controls. This blog explains how we have built and utilized open-sourced Apache Parquet™’s finer-grained encryption feature to support all 3 controls in a unified way. In