Dmitrii Gribanov

Lead Data Engineer

Tbilisi, Georgia
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Summary

👤
Senior
🎓
Top School
Dmitrii Gribanov is a Lead Data Engineer with 10 years building scalable data platforms and real-time analytics across gaming, industrial, and automotive sectors. He has led end-to-end data architecture, ETL/ELT and MLOps initiatives using cloud-native stacks (AWS/GCP/Azure), Spark, Kafka, DataBricks and containerized deployments to drive high-availability, cost-optimized pipelines. At Playrix he progressed from analytics programmer to lead roles, architecting large-scale game analytics on Redshift, Hadoop and Airflow, and more recently has held senior and lead positions across European and Georgian tech teams. Dmitrii contributes to open source—improving ClickHouse support in SQLAlchemy with new SQL function handling and robust tests—showing attention to both performance and correctness. He combines deep systems-level skills (Python/Java, SQL/NoSQL, IaC) with operational rigor in monitoring, incident response and data governance. Based in Tbilisi, he brings a pragmatic focus on performance optimization and production reliability that often surfaces as subtle fixes and test-driven improvements in mission-critical data tooling.
code10 years of coding experience
job16 years of employment as a software developer
bookBachelor's degree Computer Systems Networking and Telecommunications, Bachelor's degree Computer Systems Networking and Telecommunications at Peter the Great St.Petersburg Polytechnic University
languagesEnglish
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Github Skills (7)

databases10
sqlalchemy10
sql10
python10
clickhouse10
database10
testing9

Programming languages (2)

GoPython

Github contributions (5)

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ClickHouse dialect for SQLAlchemy
Role in this project:
userBack-end Developer / Database Engineer
Contributions:5 commits in 1 month
Contributions summary:Dmitrii contributed to the ClickHouse dialect for SQLAlchemy by implementing support for new SQL functions and constructs. They added functionality for `COUNT(expr)` and `EXTRACT` expressions within the dialect, enhancing its compatibility with ClickHouse features. Furthermore, the user added tests to validate the correct behavior of the implemented functionalities. In addition, they fixed a bug related to parsing TSV data and added tests for HTTP utility functions.
flink-sqldialectpythonsqlalchemysql
gribanov-d/cubesviewer

Mar 2016 - Sep 2017

Contributions:147 commits in 1 year 5 months
analyzingolapdatabases
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