Alexander Tokmakov
Senior Software Engineer at ClickHouse
Amsterdam, North Holland, Netherlands
Summary
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Rockstar🎓
Top School
Top expert inDistributed Database Technologies and Analytics Platforms
Alexander Tokmakov is a Senior Software Engineer based in Amsterdam with a decade of experience building high-performance C++ systems for data infrastructure. He has progressed from junior roles to senior positions at ClickHouse and previously contributed to large-scale services at Yandex, bringing deep expertise in caching and low-level data structures. An active contributor to the open-source ByConity cloud data warehouse, his commits show focused improvements to cache dictionary storage and key handling that enhance efficiency and reliability. With a Master's in Computer Software Engineering from the Higher School of Economics, he blends rigorous academic training with practical, production-grade systems engineering. He’s particularly skilled at refactoring and optimizing core storage components—work that often yields outsized performance gains not obvious from feature lists alone.
10 years of coding experience
5 years of employment as a software developer
Master's degree, Computer Software Engineering, Master's degree, Computer Software Engineering at Higher School of Economics
Github Skills (7)
data-structures10
c-language10
cprogramming-language10
data-structure10
clickhouse9
caching9
sql7
Programming languages (6)
Github contributions (5)
ByConity/ByConity
Mar 2021 - Sep 2021
ByConity is an open source cloud data warehouse
Role in this project:
Backend Developer
Backend DeveloperContributions:198 commits in 6 months
Contributions summary:Alexander's commits primarily focus on changes within the `src/Dictionaries/CacheDictionaryStorage.h` file, indicating modifications to caching mechanisms. They implemented specific changes and fixes relating to data structures, especially those related to key storage. These modifications include code refactoring and implementation details within the caching library. The user's work suggests a focus on improving the efficiency and functionality of the caching system.
datawarehousewarehousedbmsolapclickhouse
ClickHouse/libuv
Jun 2020 - Aug 2022
Cross-platform asynchronous I/O
Contributions:1 PR, 4 pushes, 3 branches in 2 years 3 months
asynchronouswindowslinuxlibuvcross-platform
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