Arkadiusz Czajkowski
Senior Software Engineering at Chainguard
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolArkadiusz Czajkowski is a Senior Software Engineer and architect with two decades of experience designing, delivering, and maintaining highly available, scalable systems across cloud, analytics, and e‑commerce domains. He blends hands‑on development with cloud architecture work, having built managed private cloud analytics platforms and contributed to commercial offerings like Starburst Galaxy. An active Trino contributor, he improved the project's integration testing infrastructure and fixed core Hive partitioning issues, reflecting deep expertise in distributed SQL/query engines and big data ecosystems. His background spans technical leadership, integration practice building, and DevOps automation, making him equally comfortable in customer-facing problem solving and low‑level engineering. Based in Warsaw, he treats software development as both profession and passion, staying actively involved in code even while leading architecture and delivery. A less obvious strength is his history of bridging consultancy, product engineering, and open‑source collaboration to turn complex customer requirements into testable, maintainable systems.
6 years of coding experience
18 years of employment as a software developer
Polish-Japanese Academy of Information Technology
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (13)
javas10
hive10
docker10
test-container10
dockers10
java10
query-engine9
big-data9
databases8
database8
analytics8
distributed-database8
sql8
Programming languages (4)
Github contributions (5)
trinodb/trino
Jan 2022 - Aug 2022
Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:403 reviews, 3 commits, 31 PRs in 7 months
Contributions summary:Arkadiusz primarily contributed to enhancing the testing infrastructure of the Trino project by creating and integrating test containers for various technologies. They implemented test containers for HiveHadoop, MinIO, and other components to facilitate integration tests. The user also fixed an issue with partition overwrite in Hive and added a flush metastore cache procedure. These changes improve the testing environment and the functionality of the project.
big-datasql-querytrinojavapresto
aczajkowski/trino
Jul 2021 - Jun 2023
Home of the community managed version of Presto, the distributed SQL query engine for big data, under the auspices of the Presto Software Foundation.
Contributions:345 pushes, 49 branches in 1 year 11 months
queryhivequery-enginesqlbig-data
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.