Denys Shabelnyk
System Specialist at Santander Nordics
Copenhagen, Capital Region of Denmark
Summary
👤
Senior🎓
Top SchoolDenys Shabelnyk is a pragmatic software engineer and systems specialist with over a decade of experience delivering banking and payment solutions across Eastern Europe and Scandinavia. He has led migrations to modern Java stacks and Spring Boot, driven loyalty and remote-banking feature work, and currently supports core banking systems at Santander Nordics. Comfortable at the intersection of development, support and architecture, he has repeatedly steered legacy-to-modern transitions—from WAY4 and Oracle Reports to Java 17/Quarkus and microservices. His background includes hands-on database and middleware work, production support leadership, and a Master’s in Cybersecurity, which informs a security-minded approach to system design. Colleagues rely on him to translate regulatory and business requirements into reliable, auditable services that keep financial operations running. A former lead engineer on card-issuing and MasterCard-related web-services, he brings both institutional banking domain knowledge and a track record of incremental, low-risk modernization.
10 years of coding experience
12 years of employment as a software developer
Master of Engineering - MEng, Cybersecurity, Master of Engineering - MEng, Cybersecurity at Vidzemes Augstskola / Vidzeme University of Applied SciencesMaster's degree, Education, Master's degree, Education at National Pedagogical University 'M.P. Drahomanov', KyivIgor Sikorsky Kyiv Polytechnic Institute
Danish, English, Ukrainian, Russian
Stackoverflow
125reputation
115kreached
4answers
10questions
Github Skills (39)
intellij-plugin10
api-client9
kotlin9
maven-plugin9
sdk9
api9
gradle-plugin9
kotlin-library9
rest-api8
rest8
generator8
java8
gradle8
reactive7
restful-api7
Programming languages (5)
Github contributions (5)
Snorri1986/Travel_Company_v.1.1.0
Nov 2015 - Sep 2018
Contributions:65 pushes, 2 branches, 1 comment in 2 years 9 months
Snorri1986/FamilyBudget
Jun 2024 - Mar 2025
Java(Spring) application for monitor and save family expenses
Contributions:3 releases, 70 PRs, 227 pushes in 9 months
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