Viktor Kolomeyko
Stony Stratford, England, United Kingdom
Summary
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RockstarViktor Kolomeyko is a pragmatic senior software engineer and technical lead with eight years of experience building and stabilizing backend systems from the UK. He combines hands-on Java development with team leadership and engineering management, focusing on maintainable, well-tested code and reliable serialization across complex platforms. Viktor has contributed to the high-profile Corda open-source blockchain project, improving unit tests and hardening AMQP/Kryo serialization to reduce runtime exceptions and improve interoperability. Colleagues would describe him as detail-oriented and unafraid of digging into legacy code to refactor and simplify tricky behaviors. Based in Stony Stratford, he brings a steady, production-first mindset to distributed systems and enterprise integrations. His track record shows a preference for incremental improvements that yield outsized stability and developer confidence.
8 years of coding experience
Russian, Ukrainian, English, French
Github Skills (8)
unit-testing10
javas10
data-serialization10
amqp10
java10
corda10
serialization10
kryo9
Programming languages (8)
Github contributions (5)
corda/corda
Aug 2017 - Nov 2022
Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:80 reviews, 200 commits, 340 PRs in 5 years 3 months
Contributions summary:Viktor primarily contributed to the Corda platform by making minor changes to unit tests and refactoring code. These changes include modifying Java unit tests, merging branches, and removing deprecated methods to improve code quality and maintainability. The user also addressed serialization issues, notably with exceptions and data structures used in the platform, ensuring proper functionality in both Kryo and AMQP modes, indicating a focus on backend system stability. Several code changes and refactorings focused on making AMQP serialization more reliable, streamlining and maintaining different serialization implementations.
interoperabledltsmart-contractprivacytransact
vkolomeyko/javalin
Sep 2021 - Jun 2023
A simple and modern Java and Kotlin web framework
Contributions:16 pushes, 3 branches in 1 year 9 months
frameworkjavalinkotlinjavawebapp
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