Nikolai Marchenko
Software Engineer
Krasnodar Krai, Russian Federation
Summary
👤
SeniorNikolai Marchenko is a seasoned frontend engineer with 12 years of experience building performant, accessible, and mobile-first web applications using React, TypeScript, GraphQL and modern tooling. He has a strong track record in fintech and B2B platforms—leading design system efforts, slashing page load times, and shipping hundreds of reusable components that measurably improved conversion and engagement. At Xometry Europe he rebuilt a customer account interface from scratch and drove a 32% uplift in conversions while adapting products for new Asian markets. Nikolai blends hands-on coding with architecture and refactoring expertise, often rescuing legacy codebases and accelerating delivery through better standards and tooling. Based in Belgrade with roots in Russia, he pairs engineering rigor from an engineering degree in automated control systems with a pragmatic focus on UX and business impact.
12 years of coding experience
Github Skills (69)
javascript10
django10
plastic10
translation10
amd10
commonjs10
dictionary10
coffeescript10
css10
webpack10
webpack-plugin10
webpack-loader10
bundle9
minification9
compiler9
Programming languages (6)
Github contributions (5)
neonick/gagarin
Apr 2015 - Aug 2018
Contributions:137 commits, 130 pushes, 1 branch in 3 years 5 months
neonick/bookshelf
Feb 2019 - Sep 2021
📗 https://neonick-bookshelf.netlify.com/
Contributions:1 PR, 3 pushes, 2 branches in 2 years 6 months
netlify
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