Dorian Sarnowski
JVM Developer Consultant at Scalac
Warsaw, Masovian Voivodeship, Poland
Summary
👤
Senior🎓
Top SchoolDorian Sarnowski is a JVM developer consultant with 14 years' experience building and scaling high-traffic services, currently based in Warsaw. He has deep hands-on expertise in Java and Kotlin ecosystems, proven by multi-year work on Allegro’s PPC advertising and billing platforms and ongoing consultancy at Scalac. His background spans migrating monoliths to microservices, performance-sensitive search (Elasticsearch) and caching (Redis) work, plus earlier full-stack PHP and API development—giving him a practical end-to-end view of systems. Comfortable in both legacy modernization and greenfield services, he pairs pragmatic engineering with a focus on reliability under load. An unusual strength is his continuity across the same product domains over many years, enabling strong domain knowledge in advertising and finance systems.
14 years of coding experience
7 years of employment as a software developer
Master's Degree, Computer Science, Master's Degree, Computer Science at Uniwersytet im. Adama Mickiewicza w PoznaniuStanisław Dubois 1st High School in Koszalin
Polish, English
Stackoverflow
146reputation
457kreached
2answers
1question
Github Skills (55)
human-readable10
internationalization10
java10
representations10
slick10
tezos10
polymorphism9
akka9
kotlin9
blockchain9
indexer9
api9
kotlin-dsl9
kotlin-library9
coroutines8
Programming languages (4)
Github contributions (5)
dorians/sudoku
Aug 2011 - Oct 2013
Contributions:35 commits in 2 years 2 months
allegro/tradukisto
Apr 2015 - Feb 2019
A Java i18n library created to convert numbers to their word representations.
Contributions:5 reviews, 42 commits, 18 PRs in 3 years 10 months
representationsjava-libraryword-representationsjavaconvert-numbers
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