Oleksii Romankevych
Java Mentor at Cbsystematics Development
Kyiv, Ukraine
Summary
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Rockstar🎓
Top SchoolOleksii Romankevych is a Java mentor and software engineer based in Kyiv with 15 years of professional experience and over 25 years of hands-on development reflected on GitHub. He blends functional programming expertise (Common Lisp) with strong object-oriented Java skills and practical knowledge of Unix, VirtualBox, and Git. Oleksii has converted legacy COBOL/JCL financial systems to Java at scale, reducing maintenance costs and dramatically shortening hiring ramp-up time. He mentors aspiring Java developers from basics through the Spring Framework, delivering curriculum, consultations, and exam-ready outcomes for students. Currently pursuing a Master's in Computer Engineering at Kyiv Polytechnic Institute, he combines academic rigor with real-world system migration and architecture experience. Notably, his background spans both network/web development and large-scale software design, making him comfortable across full-stack and back-end modernization projects.
16 years of coding experience
2 years of employment as a software developer
Igor Sikorsky Kyiv Polytechnic Institute
Stackoverflow
217reputation
346kreached
8answers
0questions
Github Skills (101)
mobile-development10
messaging10
python10
authentication10
ruby10
security10
encryption10
crypto10
javascript10
react-native-blur10
app-framework10
data-protection10
data-storage10
owasp10
golang10
Programming languages (14)
Github contributions (5)
radetsky/perl-smpp-server
Sep 2010 - Jul 2014
Contributions:36 commits, 1 push in 3 years 11 months
radetsky/Pearl-PBX
Oct 2012 - Mar 2020
Telephony management system
Contributions:206 commits, 39 PRs, 204 pushes in 7 years 5 months
telephony
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