Zhou Sun
Summary
🤩
RockstarZhou Sun is a database systems engineer and startup founder focused on making an open data stack a reality, with deep expertise in columnstore engines, LLVM-based code generation, and high-performance query execution. He led query engine development at SingleStore (formerly MemSQL), owning everything from storage engines to query compilation and database extensions, and later co-founded Mooncake Labs to build a lakehouse experience "you won't hate." Based in San Francisco, he now works at Databricks connecting Lakebase and Lakehouse technologies and exploring the space between OLTP and OLAP. Known for blending low-level performance engineering with product thinking, he brings entrepreneurial grit to platform-scale problems. An early Amazon intern and University of Michigan CS graduate, he combines research-grade systems skills with hands-on delivery in production distributed databases.
3 years of coding experience
Github Skills (27)
postgresql10
delta-lake9
analytics9
parquet9
benchmark8
cdc8
duckdb7
databases7
aws7
rust6
delta6
sql6
clickhouse5
database5
pandas-dataframe5
Programming languages (5)
Github contributions (5)
zhousun/ClickBench
Jan 2025 - Jun 2025
ClickBench: a Benchmark For Analytical Databases
Contributions:9 pushes in 5 months
zhousun/citus-benchmark
Jun 2025 - Jun 2025
Tools for running benchmarks against Citus
Contributions:3 pushes in 1 day
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