Timofei Iatsenko
Lead Frontend Developer at Road.Travel
Krakow, Lesser Poland Voivodeship
Summary
🤩
Rockstar🎓
Top SchoolTimofei Iatsenko is a Lead Frontend Developer with 13 years of full-stack TypeScript experience, currently based in Krakow and focused on building high-performance web apps and developer tooling. He combines deep frontend expertise (Angular, React, Qwik, Next.js) with backend and devtool skills (Node.js, GraphQL, MongoDB, containers), and has a knack for migrating and modernizing legacy codebases under pressure. A practical problem-solver, he has rescued projects by automating large refactors (codemods) and optimizing realtime UIs for complex interactions. Timofei is an active open-source contributor—most notably to js-lingui—where he learned Rust to ship a performant SWC plugin that materially improved i18n tooling. He’s particularly passionate about transpilers and static analysis tools that boost developer productivity and enjoys turning internal utilities into reusable modules across teams.
13 years of coding experience
8 years of employment as a software developer
Специалист, Финансы и кредит, Специалист, Финансы и кредит at Кубанский Государственный Технологический Университет (КубГТУ)
English, Russian, Polish
Github Skills (16)
i18n-js10
graphql10
typescript10
internationalization10
javascript10
nodejs10
typescripts10
ember-i18n10
rails-i18n10
cli-tools10
wordpress-graphql10
wpgraphql10
typescript-types10
nestjs10
build-automation9
Programming languages (13)
Github contributions (5)
lingui/js-lingui
Sep 2022 - Jan 2023
🌍 📖 A readable, automated, and optimized (3 kb) internationalization for JavaScript
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:361 reviews, 18 commits, 195 PRs in 4 months
Contributions summary:Timofei primarily contributed to the development and maintenance of the js-lingui library, focusing on internationalization (i18n) features. They addressed issues in the CLI tools by fixing async race conditions and supported new GetText template file formats during compile. They also refactored core components by bumping the messageformat parser, adding TypeScript types, and improving the build process.
l10nreactmessageformatreadablereact-native
nestjs/graphql
Sep 2021 - Jul 2022
GraphQL (TypeScript) module for Nest framework (node.js) 🍷
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 20 commits, 2 PRs in 9 months
Contributions summary:Timofei's commits focused on refactoring and enhancing the GraphQL module for the Nest framework, written in TypeScript. The user implemented features like supporting the `@deprecated` tag in JSDoc comments and automatically generating inline string enums. Furthermore, the user updated the plugin to process classes decorated with specific decorators and improved type introspection for the field decorator.
nestjsapollographqltypeormnode-jsjavascript
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