Iskren Chernev
Staff Software Engineer at Deep Infra Inc.
Palo Alto, California, Bulgaria
Summary
🤩
Rockstar🎓
Top School
Top expert inFull-stack JavaScript Development
Iskren Chernev is a Staff Software Engineer with 15 years' experience building and operating large-scale distributed systems, currently based in Palo Alto with roots in Bulgaria. He has a strong backend and infrastructure pedigree—designing high-throughput RPC servers, managing petabyte-class databases, and running Redis/MySQL clusters at scale—and has led projects across autonomous vehicles, media publishing, and video distribution. A pragmatic polyglot, he has shipped systems in Java, Python, Node.js and C/C++, and contributed to frontend and site maintenance work as well. Iskren is also an active open-source contributor to the widely used moment.js ecosystem, making careful bug fixes and timezone maintenance that reflect an attention to correctness and internationalization. Colleagues rely on him for smoothing complex migrations, operational reliability, and practical optimizations that keep services healthy under real-world load.
15 years of coding experience
10 years of employment as a software developer
Bachelor of Science (BS), Computer Science, Bachelor of Science (BS), Computer Science at Sofia University St. Kliment OhridskiSofia High School of Mathematics
English
Stackoverflow
301reputation
31kreached
7answers
3questions
Github Skills (19)
javascript10
testing10
versioninfo10
software-update10
version-control10
versioning10
web-development10
develop9
css9
build-process9
html9
passenger6
nginx6
ruby-on-rails6
linux6
Programming languages (18)
Github contributions (5)
moment/moment
Aug 2012 - Jul 2022
Parse, validate, manipulate, and display dates in javascript.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1338 commits, 794 PRs, 613 pushes in 9 years 11 months
Contributions summary:Iskren's commits show changes related to the core functionality of the `moment/moment` repository, specifically focusing on preventing changes to original `moment` objects when using the `isSame` function. The modifications involve updating the JavaScript code within the `min/moment.min.js` file to clone the original object to prevent change. The user has also made changes to the language files used for internationalization, specifically in the test files.
javascript
moment/momentjs.com
Feb 2013 - Jul 2022
The website for momentjs
Role in this project:Front-end Developer
Front-end DeveloperContributions:237 commits, 48 PRs, 100 pushes in 9 years 6 months
Contributions summary:Iskren primarily contributed to the website for momentjs by fixing language names and updating static files. The code changes indicate a focus on maintaining and improving the website's content, likely involving edits to JavaScript files related to core functionality and test files. These updates suggest a role focused on maintaining the website's content and ensuring its accuracy.
momentjs
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