Haizhou Zhao
Software Engineer at Alibaba Group
China
Summary
🤩
Rockstar🎓
Top SchoolHaizhou Zhao is a software engineer with 11 years of experience specializing in distributed systems, storage and backend engineering. He has worked on high-performance storage and networking features including RDMA, RPC, LSM-tree design and JIT at DolphinDB and now contributes to post-training frameworks for large language models at Alibaba (ROLL). An active open-source contributor, Haizhou has fixed core backend logic and integration issues in the widely used Apache Iceberg project, improving Avro projection handling and Hive Metastore/REST catalog integrations. Based in China with an electrical and communications engineering background from Sichuan University, he blends low-level systems expertise with practical cloud and data platform experience. Notably, his profile spans both production-grade storage optimizations and ML model training infrastructure—an uncommon cross-section that helps bridge data systems and AI workloads.
11 years of coding experience
4 years of employment as a software developer
Electrical, Electronics and Communications Engineering, Electrical, Electronics and Communications Engineering at Sichuan UniversityChengdu NO.7 High School 成都市第七中学
Github Skills (8)
javas10
avro10
java10
apache-iceberg10
testing9
rest-api9
openapi8
hadoop7
Programming languages (2)
Github contributions (5)
apache/iceberg
Feb 2022 - Jan 2023
Apache Iceberg
Role in this project:
Back-end Developer
Back-end DeveloperContributions:116 reviews, 3 commits, 11 PRs in 11 months
Contributions summary:Haizhou primarily contributed to the Apache Iceberg project by addressing backend logic and integration with various components. They focused on fixing issues related to Avro projection handling and also made changes to the Hive Metastore integration, specifically around database ownership and namespace creation. Additionally, the user worked on REST Catalog tests, enhancing the testing infrastructure for the REST catalog functionality, and fixed issues in the OpenAPI definition.
apache-icebergapachebig-datadatastreamjava
haizhou-zhao/iceberg
Feb 2022 - Nov 2024
Apache Iceberg
Contributions:77 pushes, 6 branches in 2 years 9 months
parquetapache-icebergapachebig-datadatastream
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