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Karlie and Lily
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Karlie and Lily
38 followers · 103 following

Achievements

Achievement: YOLOAchievement: Pull Sharkx2

Achievements

Achievement: YOLOAchievement: Pull Sharkx2

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CuteChuanChuan/README.md

Raymond Hung

Data Engineer | Apache Open Source Contributor

Portfolio LinkedIn GitHub

Tech Stack

Data Processing & Query Engines

Apache Spark Apache DataFusion Apache Airflow Apache Iceberg Apache Kafka Polars PostgreSQL

Languages

Python Rust Scala Java

Infrastructure

Docker Kubernetes AWS GCP

Open Source Contributions

Merged PRs across 5 Apache projects:

Project Focus
Apache DataFusion Spark-compatible functions (json_tuple, size), doc formatting, benchmarks
Apache DataFusion-Comet QueryPlanSerde modular refactoring (Spark accelerator plugin)
Apache DataFusion-Ballista Configurable gRPC timeouts for distributed query engine
Apache Iceberg ErrorProne fixes, test naming, docs
Apache Ozone Dead code removal

Blog

Technical articles on my open source work: cutechuanchuan.github.io/posts

Pinned Loading

  1. apache/datafusion apache/datafusion Public

    Apache DataFusion SQL Query Engine

    Rust 8.4k 2k

  2. apache/datafusion-ballista apache/datafusion-ballista Public

    Apache DataFusion Ballista Distributed Query Engine

    Rust 2k 264

  3. apache/datafusion-comet apache/datafusion-comet Public

    Apache DataFusion Comet Spark Accelerator

    Scala 1.1k 286

  4. apache/iceberg apache/iceberg Public

    Apache Iceberg

    Java 8.6k 3k

  5. DataPulse DataPulse Public

    Lightweight Data Quality Observability Platform

    Python

  6. Dive-Into-Iceberg Dive-Into-Iceberg Public

    In-depth exploration of Apache Iceberg features, performance optimizations, and best practices.

    Scala