Kostya Belenkiy
Senior Web Developer at Guidde
Nahariya, North District, Israel
Summary
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Senior🎓
Top SchoolKostya Belenkiy is a Senior Web Developer with 11 years of experience and a Master’s in Computer Science, specializing in frontend and full-stack JavaScript/TypeScript with React and Node.js. He pairs deep engineering craft with product strategy, leading cross-functional initiatives from tech design through A/B testing, observability and analytics to drive measurable business outcomes. At Riverside.fm he led experiments and features that boosted ARR by 10–30% and implemented an AI credits system for costly inference workloads. As a founding front-end engineer at an AI-powered e-commerce startup, he built storefront and dashboard ecosystems, design systems and automated test suites while managing a distributed team. Based in Nahariya, Israel, he brings a hereditary engineering mindset and a knack for aligning AI-driven web capabilities to real product metrics.
11 years of coding experience
10 years of employment as a software developer
Specialized Educational Scientific Center of Novosibirsk State UniversityMaster's degree Computer Science, Master's degree Computer Science at Novosibirsk State University (NSU)
Russian, English, Hebrew
Github Skills (24)
decentralized-applications10
ethereumjs9
blockchain9
react8
browser8
ipfs8
electron7
nodejs6
mvc-framework5
javascript4
typescript4
dom4
stability4
js-framework4
github3
Programming languages (2)
Github contributions (5)
webkostya/isometric
Apr 2017 - Oct 2017
Contributions:11 commits, 10 pushes, 2 branches in 6 months
webkostya/Polyfill
Jun 2016 - Jul 2017
Contributions:16 pushes, 1 branch in 1 year
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