Sergio Kosik
Software Architect at Dogecoin
Poland
Summary
👤
Senior🎓
Top SchoolSergio Kosik is a software architect with 11+ years of hands-on experience designing secure, production-grade systems across fintech, insurance, GPS telematics and BPM domains. He blends deep security thinking with pragmatic engineering, having built proprietary BPM engines used by major banks and contributed a world-class open source library that simplifies PoW blockchain operations for compliant payments. Sergio has led teams and products—from machine translation and document management to energy-efficient GPS tracking—while keeping a strong focus on risk management and financial market analysis. He architects solutions that let businesses treat blockchain payments like traditional bank rails, and his Dogecoin toolkit demonstrates a knack for turning complex protocols into simple Java POJOs. Based in Poland, he combines cross-domain product insight with active open-source stewardship and a long-standing commitment to security-as-a-process.
11 years of coding experience
13 years of employment as a software developer
Master's degree, Russian Language. History. Sociology., Master's degree, Russian Language. History. Sociology. at MPSUMaster's degree of software engineering, Software Support of Informational Systems, Master's degree of software engineering, Software Support of Informational Systems at University of Further Training and Retraining of Managers and Specialists of Industry
Ukrainian, Russian, Italian, English
Stackoverflow
302reputation
266kreached
11answers
1question
Github Skills (73)
authentication10
spring-security10
security10
cryptocurrency10
wallet10
currency10
java10
spring-boot10
spring10
zcash10
oauth10
bitcoin9
telegram-bot8
cryptocurrencies8
polling8
Programming languages (4)
Github contributions (5)
kosik/dataStructures
Sep 2015 - Mar 2024
Contributions:2 pushes in 8 years 7 months
kosik/dogej
Oct 2022 - Feb 2023
Java lib to intercommunicate with Dogecoin core nodes
Contributions:17 commits, 19 PRs, 48 pushes in 4 months
node-corejava-librarydogecoincryptocurrencybitcoin
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