Liu Xiao
Student at apache
East Lake High-tech Zone, Hubei, China
Summary
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RockstarLiu Xiao is a backend-focused software engineer with seven years of experience building and refining high-performance data integration and storage systems. Based in East Lake High-tech Zone, Hubei, he has contributed to prominent open-source projects such as ByteDance’s BitSail—implementing connectors, data validation sinks, and schema auto-retrieval—and Apache Iceberg, where he improved maintainability by refactoring deprecated test helpers and addressing schema and data-handling issues. He combines practical production engineering (FTP, JDBC, Hive integrations) with a knack for code hygiene that reduces technical debt across distributed data platforms. Recently he has been exploring LLM reasoning and agent architectures, signaling a shift toward intelligent automation layered on top of robust data infrastructure. Colleagues would describe him as detail-oriented and pragmatic, comfortable navigating both connector-level I/O challenges and broader library-level refactors.
7 years of coding experience
Github Skills (20)
data-pipelines10
apache-flink10
testing10
big-data10
flink-sql10
refactor10
java10
javas10
apache-iceberg10
refactoring10
data-pipeline10
data-integration10
ftp9
jdbc9
hive9
Programming languages (11)
Github contributions (5)
bytedance/bitsail
Nov 2022 - Mar 2023
BitSail is a distributed high-performance data integration engine which supports batch, streaming and incremental scenarios. BitSail is widely used to synchronize hundreds of trillions of data every day.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:18 reviews, 14 commits, 16 PRs in 3 months
Contributions summary:Liu primarily contributed to the BitSail data integration engine by implementing and enhancing connectors and related functionalities. They developed an Assert sink connector to validate data, and also supported more character sets in the FtpInputFormat. Additionally, the user improved the JDBCInputFormat to support auto-retrieval of column schemas. Furthermore, the user migrated larksheet legacy connector to V1 interface and implemented auto getting of column schemas in HiveOutputFormat.
operationflinkbatch-processingdaydata-lake
apache/iceberg
Sep 2022 - Jul 2023
Apache Iceberg
Role in this project:Backend Developer
Backend DeveloperContributions:23 reviews, 21 PRs, 38 comments in 10 months
Contributions summary:Liu's commits primarily involve refactoring and removing deprecated code related to `AssertHelpers` within different modules, including Aliyun OSS, Dell ECS, MR, AWS, and Spark. These changes indicate a focus on code cleanup and improving the codebase's maintainability and potentially removing testing dependencies. The user also addressed several issues related to data handling, schema validation, and general performance within the core Iceberg library. The user has also fixed minor issues related to missing arguments and function calls.
apache-icebergapachebig-datadatastreamjava
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