Krystian Jasiński
Information Technology Consultant
Krakow, Lesser Poland Voivodeship
Summary
👤
Senior🎓
Top SchoolKrystian Jasiński is an experienced Information Technology Consultant with 13 years building low-latency, high-frequency systems and enterprise Java/C++ platforms across Linux, Solaris and Windows. He has a strong track record in multi-threading, performance optimization and messaging technologies (MQ, Kafka, FIX/Tibco), having delivered critical trading and financial services software for firms like Brown Brothers Harriman, CME Group and EPAM. Comfortable across the stack, he combines modern Java (11/17), Spring, Reactor and cloud-native tooling (Kotlin, AWS, Kubernetes) with deep systems-level C/C++ expertise and JNI integrations. As a consultant and recent independent practitioner based in Krakow, he balances hands-on coding with architecture and legacy-modernization work—often reverse-engineering and refactoring complex, mission-critical systems. Notably, his background spans both embedded/mobile beginnings and high-throughput exchange systems, giving him a rare blend of UI, systems and performance-first perspectives.
13 years of coding experience
17 years of employment as a software developer
Management, Management at Wyższa Szkoła Europejska im. Ks. Józefa TischneraMaster of Science, Computer Science, Master of Science, Computer Science at Politechnika Krakowska im. Tadeusza KościuszkiCISCO, CISCO at Cracow University of TechnologyI LO Nowy Sącz
Github Skills (76)
parser10
expressjs10
heroku-api10
windows10
nodemailer10
mongoose10
javascript10
middleware10
linux10
js10
blocked10
json10
macos10
nodejs10
parsing10
Programming languages (7)
Github contributions (5)
Schibsted-Tech-Polska/stp.cubecarousel
Apr 2013 - Jun 2013
Contributions:20 commits in 2 months
Schibsted-Tech-Polska/nodesi
Mar 2015 - Apr 2018
Edge Side Include: the good parts, in Node.js
Contributions:105 commits, 3 PRs, 26 pushes in 3 years 2 months
nodejs
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