Denis Zhuravlev
Backend Team Lead Clickhouse Sysdba at Innervate (formerly RevJet)
Quispamsis, New Brunswick, Canada
Summary
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RockstarDenis Zhuravlev is a seasoned backend team lead and ClickHouse sysdba with over a decade of hands-on experience and 26+ years in IT. Based in Quispamsis, New Brunswick, he leads backend engineering at Innervate (formerly RevJet), specializing in ClickHouse performance, ingestion, and operational reliability. An active open-source contributor, Denis has enhanced the ClickHouse Java client/JDBC driver—improving result set handling, compressed data streams, and ORC/Parquet ingestion—and contributes rigorous test automation to the ByConity cloud data warehouse project. He combines deep systems expertise with QA-minded discipline, often surfacing subtle data-type and partitioning edge cases that improve long-term stability.
9 years of coding experience
Stackoverflow
12,407reputation
757kreached
491answers
1question
sql
top-5%
database
top-5%
Github Skills (25)
testing10
jdbc10
java10
data-ingestion10
javas10
database-driver10
driver10
sql10
clickhouse10
streaming-data9
database9
parquet8
orc8
casting6
dbeaver6
Programming languages (9)
Github contributions (5)
ClickHouse/clickhouse-java
Aug 2019 - Aug 2021
ClickHouse Java Clients & JDBC Driver
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 19 commits, 13 PRs in 2 years
Contributions summary:Denis primarily contributed to the Java client and JDBC driver for ClickHouse. Their work involved modifications to the `ClickHouseResultSet` class, enhancing its functionality related to data type handling and array parsing. The user implemented features for sending compressed data streams and added tests for inserting data in ORC and Parquet formats, indicating a focus on data ingestion and format support. They also addressed external data handling and fixed test cases.
clickhouse-clientclickhousedatabasejavajdbc
ByConity/ByConity
Mar 2021 - Jun 2021
ByConity is an open source cloud data warehouse
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:14 commits in 2 months
Contributions summary:Denis primarily contributes test cases to the ByConity data warehouse project, covering various functionalities. Their commits focus on testing features like LowCardinality data types, MergeTree engine behavior, and partition management. The contributions also extend to checking row policies and the behavior of `PARTITION BY 0 * id`, ensuring the stability and correctness of the system.
datawarehousewarehousedbmsolapclickhouse
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