Timofei Kachalov
Frontend Engineer at Metabase
Dubai, Dubai, United Arab Emirates
Summary
🤩
Rockstar🎓
Top SchoolTimofei Kachalov is a Senior Frontend Engineer with over a decade of hands-on experience building scalable, high-performance web applications using TypeScript, React and Next.js. He has a strong track record delivering both customer-facing platforms and internal tooling—reducing engineering effort for A/B experiments by 80% and cutting incident recovery times from hours to minutes. Based in Dubai, he routinely architects cross-team libraries and UX systems, mentors peers, and leads migrations from legacy stacks to modern TypeScript/GraphQL frontends. An active open-source contributor, Timofei has improved widely used JavaScript tooling—adding source map support and modern syntax handling to projects like javascript-obfuscator and escodegen. He balances product-focused engineering with pragmatic infrastructure work (Node.js, WebSocket, Docker, CI/testing), proving effective in both startup-like delivery and enterprise-grade reliability.
11 years of coding experience
10 years of employment as a software developer
Master of IT IT in business, Master of IT IT in business at SUAI
Русский, Английский
Github Skills (14)
astm10
tree10
typescript10
javascript10
code-generation10
typescripts10
sourcemaps10
webpacker10
ecmascript10
typescript-types10
webpack10
testing10
optional-chaining9
nodejs9
Programming languages (8)
Github contributions (5)
javascript-obfuscator/webpack-obfuscator
May 2016 - Feb 2022
javascript-obfuscator plugin for Webpack
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:152 releases, 143 commits, 17 PRs in 5 years 10 months
Contributions summary:Timofei primarily worked on the javascript-obfuscator/webpack-obfuscator project, contributing to the core functionality of the webpack plugin. Their work involved refactoring the TypeScript and JavaScript files, version updates, and the implementation of source map support. They made changes to how obfuscation is applied during the webpack build process. They also addressed build issues and ensured the proper exclusion of files.
webpack-plugindeobfuscatorjavascriptpluginobfuscator
javascript-obfuscator/javascript-obfuscator
May 2016 - Jan 2023
A powerful obfuscator for JavaScript and Node.js
Role in this project:Back-end Developer
Back-end DeveloperContributions:223 releases, 18 reviews, 2084 commits in 6 years 9 months
Contributions summary:Timofei made several contributions to the project, mostly focused on implementing features using Javascript. These include renaming templates, test integration, and code refactoring. The primary contributions revolve around the logic and functionality of the project.
stringuglifyjavascript-obfuscatorbrowsercontrol-flow
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