Eugene Kulak
Data Engineer
Dnipro, Dnipropetrovsk Oblast, Ukraine
Summary
🤩
Rockstar🎓
Top SchoolEugene Kulak is a seasoned Data Engineer with 11 years of hands-on experience building high-performance systems in finance, game development, and internet marketing. He combines deep C++ and Python expertise with practical big-data and ETL know-how—having worked with Hadoop, Spark, Kafka, Hive and Airflow—to optimize data flows at very high scale. Currently contributing to data integration work (including fixes and test-suite improvements for the widely used Airbyte connector ecosystem) and serving as a software architect, he blends backend engineering with system design. Comfortable in legacy refactors and building robust pipelines, he also brings a track record of shipping rapid MVPs and A/B-testable features for production auction and recommendation platforms. Based in Dnipro, Ukraine, Eugene is a pragmatic problem-solver who favors modular, well-tested solutions that minimize risk in high-load environments.
10 years of coding experience
13 years of employment as a software developer
Bachelor's degree, Bachelor's degree at Nacional'na Metallurgijna Akademija Ukraini
English, Ukrainian
Stackoverflow
388reputation
7kreached
19answers
0questions
Github Skills (15)
apim10
api10
http-api10
python10
pytest9
testing9
error-handling9
data-engineering8
unit-testing6
django-testing6
oracle6
sql6
postgresql6
subprocess6
django6
Programming languages (7)
Github contributions (5)
airbytehq/airbyte
Mar 2021 - Mar 2022
The leading data integration platform for ETL / ELT data pipelines from APIs, databases & files to data warehouses, data lakes & data lakehouses. Both self-hosted and Cloud-hosted.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1123 reviews, 47 commits, 136 PRs in 11 months
Contributions summary:Eugene's commits focused on debugging and improving a source connector for Hubspot, addressing issues with API tokens and error handling within the `source-hubspot` integration. This involved fixing tests, adding error code constants, and modifying the client code to handle HTTP errors and Cloudflare DNS errors. Additional contributions included the creation of a modular standard test suite (v2) for source connectors, with the renaming of tests to align with the source acceptance test.
operationpythondataintegration-platformdata-warehouse
keu/docs
Jul 2023 - Feb 2025
This repository contains all content and code for Astro and Astronomer Software documentation.
Contributions:2 PRs, 8 pushes, 3 branches in 1 year 7 months
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