Michał Olejnik
Senior Software Engineer at Sportradar
Wrocław, Lower Silesian Voivodeship, Poland
Summary
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Senior🎓
Top SchoolMichał Olejnik is a Senior Software Engineer with a decade of hands-on experience building enterprise-grade JVM systems, currently shaping backend solutions at Sportradar after a long tenure at Ocado Technology. He graduated with distinction in Software Engineering from Politechnika Wrocławska and has a track record of balancing demanding work with academic excellence—having worked full-time during his final university year. Skilled in Agile practices and pragmatic engineering, he focuses on delivering reliable, maintainable systems and mentoring peers across cross-functional teams. Colleagues describe him as communicative, open-minded, and relentlessly curious, always chasing refinement and new technologies to improve outcomes.
10 years of coding experience
12 years of employment as a software developer
Master of Science (M.S.), Software engineering, with distinction, Master of Science (M.S.), Software engineering, with distinction at Politechnika Wrocławska
Polish, English, Italian
Github Skills (18)
datasets10
producer10
java-api10
in-memory9
java9
high-performance9
big-data7
flowtype7
cli6
sat-solver6
kotlin5
plugin2
testing2
postgresql-database2
binaries1
Programming languages (4)
Github contributions (5)
blekit/hollow
Jul 2018 - Dec 2022
Hollow is a java library and toolset for disseminating in-memory datasets from a single producer to many consumers for high performance read-only access.
Contributions:17 pushes, 4 branches in 4 years 6 months
memorymmaphollowmemory-allocationdistributed-systems
blekit/fpinkotlin
Aug 2020 - Nov 2020
Exercises and solutions for my book The Joy of Kotlin
Contributions:16 PRs, 11 pushes, 13 branches in 2 months
sat-solverkotlin-languagekotlinjoyjava
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