Alexandr Krasheninnikov
Head Of Ingest And ETL Platform
Yerevan, Armenia
Summary
🤩
Rockstar🎓
Top SchoolAlexandr Krasheninnikov is a seasoned data engineering leader with 11+ years building large-scale ETL, DWH and real-time processing platforms, now heading Ingest and ETL at Tinkoff from Yerevan. He has led 100-person BI organizations and delivered massive infrastructure projects—designing 300+ node, 50 PB Hadoop clusters and consolidating siloed warehouses into 500 TB MPP DWHs that support hundreds of analysts and thousands of business users. Known for combining hands-on engineering (including contributions to the ClickHouse Java client and JDBC driver) with strong delivery and mentoring skills, he drives migrations to open-source stacks that materially cut OPEX. Alexandr’s pragmatic focus on “making customers happy” shows in scalable architectures (anchor-modeled DWHs, high-availability clusters) and audit-ready reporting for IPOs. He’s an experienced conference speaker who quietly pairs deep systems knowledge with organizational design to enable many teams to deliver in parallel.
11 years of coding experience
12 years of employment as a software developer
Specialist Strength of materials Composite structures structural mechanics, Specialist Strength of materials Composite structures structural mechanics at Bauman Moscow State Technical University
English, French
Stackoverflow
1reputation
577reached
2answers
2questions
Github Skills (18)
prepared-statements10
java-client10
jdbc10
java10
javas10
database-driver10
driver10
clickhouse10
api-design9
apache-kafka6
database6
soa6
pyspark6
python6
spark-streaming6
Programming languages (5)
Github contributions (5)
ClickHouse/clickhouse-java
Oct 2017 - Feb 2020
ClickHouse Java Clients & JDBC Driver
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 releases, 42 commits, 25 PRs in 2 years 4 months
Contributions summary:Alexandr primarily contributed to the ClickHouse Java client, focusing on enhancing the JDBC driver and related functionalities. Their work included addressing missing placeholder positions in prepared statements, improving support for NaN values in float and double handling, and refactoring code to use an enumeration for data formats. They also added new APIs for writer and related features, further extending the client's capabilities.
clickhouse-clientclickhousedatabasejavajdbc
alex-krash/ClickHouse
Jul 2018 - Aug 2019
ClickHouse is a free analytic DBMS for big data.
Contributions:37 pushes, 13 branches in 1 year
analyticsdbmsmysqlanalyticsql
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.