Alexey Milovidov
Chief Technology Officer at ClickHouse
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar
Top expert inDistributed Database Technologies and Analytics Platforms
Alexey Milovidov is a seasoned technology leader and co-founder who has spent 17 years building high-performance analytical databases and currently serves as Chief Technology Officer at ClickHouse. Based in Amsterdam, he combines hands-on backend development and DevOps expertise with strategic product leadership, driving core database internals, performance benchmarking, and cloud data warehouse design. His open-source work on ClickHouse, ClickBench and ByConity highlights deep specialization in query performance, time-interval/versioning logic, and measurable benchmarking across systems like Vertica and PostgreSQL. Colleagues rely on him for pragmatic refactors and rigorous tests that keep large-scale analytics systems fast and reliable. An interesting detail: beyond architecture and leadership, he remains an active committer who updates presentations and community materials, signaling a strong commitment to developer education and ecosystem growth.
17 years of coding experience
Github Skills (22)
git10
c-language10
testing10
databases10
sql10
cprogramming-language10
clickhouse10
database10
scripting9
data-structure9
performance-optimization9
shell9
version-control9
data-structures9
script9
Programming languages (29)
Github contributions (5)
ClickHouse/ClickBench
Feb 2014 - Jan 2023
ClickBench: a Benchmark For Analytical Databases
Role in this project:
Back-end Developer
Back-end DeveloperContributions:82 reviews, 365 commits, 189 PRs in 8 years 11 months
Contributions summary:Alexey's commits focused on benchmarking the performance of an analytical database, ClickHouse, and then extending the benchmark to include support for other database systems like Vertica, MemSQL, and PostgreSQL. The user added new benchmark scripts and updated existing ones. They also made changes to the queries used in the benchmark, specifically the queries used for Vertica, indicating a focus on database performance testing and potentially optimization.
analyticsdata-analysisolapsqlbig-data
ClickHouse/clickhouse-presentations
Feb 2017 - Jan 2023
Presentations, meetups and talks about ClickHouse
Role in this project:Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:16 reviews, 297 commits, 61 PRs in 6 years
Contributions summary:Alexey's commits primarily involve refactoring and updating the presentation files within the repository. The changes include reverting file removals, updating presentation content to include more information, adding links to related .NET libraries and updating the slides with content from several ClickHouse meetups. Furthermore, the commits involve refactoring code and removing unnecessary code parts. These modifications strongly suggest a focus on content updates and organization within the presentations, indicating a role that blends back-end development with DevOps by editing the presentation's code.
clickhouse
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