Kos K
Senior Node.js Developer at Group 107
Sumy, Sumy Oblast, Ukraine
Summary
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SeniorKos K is a Senior Node.js Developer with 11 years of experience building backend systems for startups and scale-ups, currently focused on remote, long-term roles. He has shipped production services using Node.js and TypeScript across serverless AWS stacks (Lambdas, AppSync, Cognito) and databases like DynamoDB and Aurora, and has hands-on experience with Docker, GraphQL, and observability tools. Past roles span Cloudbeds, Shelf, and product teams where he moved from front-end SPA work into backend and distributed systems design. He also develops in Rust and explores game development, bringing a low-level systems perspective that informs performant backend architecture. Based in Sumy, Ukraine, he combines pragmatic engineering with a preference for long-term remote engagements and a taste for cross-paradigm toolchains.
11 years of coding experience
10 years of employment as a software developer
Русский, English
Stackoverflow
11,600reputation
914kreached
49answers
72questions
functional-programming
top-1%
javascript
top-1%
angularjs
top-5%
Github Skills (200)
threejs10
svg10
3d10
html10
nodejs10
augmented-reality10
css10
react-like10
webxr10
desktop10
webgpu10
game-engine10
webapp10
lang10
lint10
Programming languages (9)
Github contributions (5)
SET001/df-amethyst
Apr 2020 - Oct 2023
Contributions:54 pushes, 4 branches in 3 years 5 months
SET001/e1
Oct 2018 - Dec 2018
Contributions:61 commits, 2 PRs, 27 pushes in 1 month
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