Andrei Chekun
Software Engineer In Test at ScyllaDB
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolAndrei Chekun is a Senior Software Engineer in Test with 10 years of experience building robust test automation, CI/CD pipelines, and quality architectures across fintech and infrastructure domains. Currently at ScyllaDB in Krakow, he has deep hands-on experience improving large-scale distributed database test suites—adding multi-DC tests, enabling targeted CQL node connections, and eliminating file descriptor leaks to boost stability. His background includes leadership roles at EPAM and critical QA work at WorldRemit and Point72, where he led teams, hired and mentored engineers, and modernized internal testing frameworks. Comfortable at the intersection of back-end systems and testing, Andrei combines practical automation engineering with a knack for hardening reliability in production-like environments. An MSc in Management Information Systems complements his technical focus with systems thinking and process improvement.
10 years of coding experience
12 years of employment as a software developer
Specialist Economics, Specialist Economics at Polessky State UniversityMaster's degree Management Information Systems General, Master's degree Management Information Systems General at University of Roehampton
Russian, English, Polish
Github Skills (10)
databases10
c-language10
scylla10
cprogramming-language10
cassandra10
nosql10
database10
testing10
pytest9
seastar9
Programming languages (5)
Github contributions (5)
scylladb/scylladb
Feb 2024 - Jun 2026
NoSQL data store using the Seastar framework, compatible with Apache Cassandra and Amazon DynamoDB
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:329 reviews, 118 PRs, 665 comments in 2 years 4 months
Contributions summary:Andrei primarily focused on enhancing the testing capabilities of the ScyllaDB project, specifically for multi-DC setups. They added and improved tests for multi-DC functionality, including creating new tests and migrating existing ones. The user also implemented features like the ability to connect CQL to specific nodes and overwrite replication factors, which were critical for test execution and improved the overall quality of tests. Furthermore, the user addressed file descriptor leaks in the test suite, which significantly enhanced the reliability and stability of the testing process.
amazon-dynamodbcassandranosqlseastarc-plus-plus
xtrey/scylla-cluster-tests
Jun 2024 - Jul 2026
Tests for Scylla Clusters
Contributions:60 pushes, 3 branches in 2 years 1 month
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