Oleksandr Zelentsov
Senior Software Engineer at S&P Global
Lublin Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolOleksandr Zelentsov is a Senior Software Engineer with 11 years of experience building backend systems in Python, currently contributing to S&P Global from Lublin, Poland. He has a strong track record across startups and enterprise teams—designing JSON and GraphQL APIs, scaling services to millions of users, and maintaining large legacy codebases with minimal documentation. Comfortable across Tornado, Django, PostgreSQL/MySQL and CI/CD tooling, he brings pragmatic problem-solving honed at companies like VentureDevs, EMBIQ and CloudLinux. A curious programmer who pairs technical rigor with interests in music, math and languages, he often gravitates toward systems-level challenges and improving test architecture. Notably, his early work on Linux-focused CI and internal test frameworks laid a durable foundation for later large-scale backend and notification services.
11 years of coding experience
6 years of employment as a software developer
Computer Software Engineering, Computer Software Engineering at Kyiv College of Computer Technologies and EconomicsBachelor's degree, Computer Science, Bachelor's degree, Computer Science at Politechnika Lubelska
English, Ukrainian, Russian, Polish
Stackoverflow
57reputation
2kreached
4answers
0questions
Github Skills (38)
stylus8
api-platform7
postman7
rest-api6
boost6
unit-test6
steam6
react6
nodejs6
api6
mocking6
rest6
yaml6
python6
django6
Programming languages (3)
Github contributions (5)
oleksandrzelentsov/levenstein_distance
Nov 2016 - Jul 2017
Contributions:3 releases, 82 commits, 40 PRs in 8 months
comparisonlanguagesdistance
oleksandrzelentsov/snap-sink
Jul 2016 - Sep 2017
Contributions:1 release, 8 PRs, 32 pushes in 1 year 2 months
pythonrsyncsshpython-3python3
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