Denisย Krivenko
Senior Data Platform Engineer
Stockholm, Stockholm County, Sweden
Summary
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Rockstar๐
Top SchoolDenis Krivenko is a Senior Data Platform Engineer with eight years of experience building cloud-native, production-grade data platforms and distributed systems. Based in Stockholm, he combines deep Java backend skills with DevOps practices to design Kubernetes-based lakehouse and analytics platforms, CI/CD GitOps pipelines, and cost-managed infrastructure across GCP and OpenShift. He is an active Apache contributor and Kyuubi committer, having implemented configuration features and docs improvements for the popular serverless SQL gateway used in data warehouses and lakehouses. Denis has driven platform migrations and near-real-time data processing projects with Kafka, Spark, and Presto/Trino, and has a track record of turning open source integrations into reliable production services. He also mentors analysts and engineers, emphasizing reproducible deployment patterns and observability. Outside typical platform work, heโs particularly skilled at translating complex configuration and memory-management edge cases into pragmatic, documented fixes that improve operator experience.
8 years of coding experience
13 years of employment as a software developer
Master's degree Computer science, Master's degree Computer science at Southern Federal University (former Rostov State University)
ะ ัััะบะธะน, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (20)
big-data10
java10
javas10
sql10
presto10
documentation10
hadoop9
scala9
query-optimization9
s3-bucket8
amazon-s38
spark8
aws-s38
thrift7
jdbc7
Programming languages (14)
Github contributions (5)
apache/kyuubi
Dec 2022 - Jan 2023
Apache Kyuubi is a distributed and multi-tenant gateway to provide serverless SQL on data warehouses and lakehouses.
Role in this project:
Back-end Developer & Technical Writer
Back-end Developer & Technical WriterContributions:49 reviews, 6 commits, 41 PRs in 20 days
Contributions summary:Denis primarily contributed to the Kyuubi project by implementing new features related to configuration options. They also refactored code to support loading configurations from command-line arguments. In addition, they worked on refining the project's documentation, improving clarity and fixing formatting issues. This work included renaming pages, correcting typos, and removing redundant content.
tenantserverlessdata-lakejdbcspark-sql
prestodb/presto
May 2022 - Dec 2022
The official home of the Presto distributed SQL query engine for big data
Role in this project:Back-end Developer
Back-end DeveloperContributions:35 reviews, 6 commits, 28 PRs in 6 months
Contributions summary:Denis contributed to the Presto SQL query engine by modifying core components and documentation. They made changes to memory management configurations, specifically making `query.max-total-memory-per-node` an optional setting. The user also addressed a bug in the S3 file system, ensuring `FileNotFoundException` is thrown when a file is missing. Furthermore, the user updated documentation, fixing default values and enhancing the user experience.
distributed-sqlquerybigdataquery-enginesql
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