Dumitru Uzun
SWE at Limitlesslane LLC
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolDumitru Uzun is a seasoned software engineer with 12 years of experience building secure, high-performance web systems and developer tools from Warsaw. He co-founded Limitlesslane, designing an AES-256, PBKDF2-backed online password manager and owning system architecture, DevOps and browser-extension development while advocating automation to boost productivity. At ICASA he led full-stack teams to automate e-commerce and supply-chain workflows, pairing backend services (Nginx/PHP-FPM/Node, MariaDB) with responsive front-end tooling. Now at Google, he continues to blend deep engineering discipline with pragmatic product thinking. An active open-source contributor, Dumitru has optimized widely used JavaScript libraries such as jstree and UAParser.js—demonstrating a knack for performance tweaks (like reused DOM-based HTML escaping) and keeping global scope clean in complex environments. His background in mathematics and education informs a methodical, shareable approach to building maintainable systems and mentoring others.
12 years of coding experience
10 years of employment as a software developer
Bachelor's degree in Education Sciences, Mathematics and Computer Science, A+, Bachelor's degree in Education Sciences, Mathematics and Computer Science, A+ at Tiraspol State University
Polish
Stackoverflow
1,713reputation
1.3mreached
26answers
1question
jquery
top-5%
Github Skills (23)
jquery-plugin10
programming-language10
javascript10
jquery10
user-agent10
plugin-development10
implement10
ports10
front-end-development10
performance-optimization10
amd9
css9
error-handling9
minification8
responsive-design8
Programming languages (18)
Github contributions (5)
vakata/jstree
Feb 2015 - Jun 2019
jquery tree plugin
Role in this project:
Front-end Developer
Front-end DeveloperContributions:6 commits, 8 PRs, 34 comments in 4 years 4 months
Contributions summary:Dumitru contributed to the `jstree` plugin by optimizing performance and addressing code efficiency. They introduced an HTML escaping method that reuses a single DIV element for improved performance. Further contributions involved small improvements, and a revert related to a previous commit, showing a focus on code quality and maintainability. These changes suggest a focus on optimizing the core functionality and structure of the JavaScript tree plugin.
bowerjqueryjstreejavascriptjquery-ui
faisalman/ua-parser-js
Nov 2014 - Oct 2015
"Unmask Your Traffic" - UAParser.js: The Essential Web Development Tool for User-Agent Detection
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:10 commits, 5 PRs, 3 comments in 11 months
Contributions summary:Dumitru primarily focused on improving the codebase and optimizing its functionality. They ensured the global scope was kept clean with AMD by preventing `UAParser` from being exported to the global scope in an AMD environment, even when jQuery is present. They also performed code compilation using closure, ensuring the minified version of the library was optimized. Additionally, the user updated the versioning script to add features.
device-detectionjquery-plugingpu-detectioncpubrowser
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