Momtchil Momtchev
Full Stack Engineer at VELIVOLE.FR
Greater Paris Metropolitan Region France
Summary
👤
SeniorMomtchil Momtchev is a seasoned full stack engineer with roughly eight years of professional experience and a long history of systems and embedded work dating back to the 1990s. He blends low-level systems expertise (embedded software, libuv, SWIG) with front-end and full-stack contributions, including UI improvements to a popular React Markdown Editor and fixes to Node.js’s HTTP/2 implementation. An active open-source contributor, he has improved geospatial tooling in GDAL and helped refine orbital mechanics calculations for a widely used KSP mod, showing both breadth and attention to numerical accuracy. He has held technical leadership roles and run his own ventures, demonstrating an ability to move between hands-on development and project ownership. Based in Greater Paris, he brings deep debugging skills, performance-minded fixes, and a pragmatic approach to cross-platform and backend problems. A less obvious strength is his knack for restoring and hardening tests and tooling, which has reduced flakiness and regressions across several core projects.
8 years of coding experience
16 years of employment as a software developer
English, French, Bulgarian
Stackoverflow
3,107reputation
338kreached
230answers
14questions
Github Skills (47)
asynchronous10
javascript10
c-language10
unix10
runtimes10
testing10
http10
typescript10
grib10
c1110
ui-design10
geojson10
orbital-mechanics10
networking10
c1710
Programming languages (15)
Github contributions (5)
nodejs/node
Oct 2020 - Sep 2022
Node.js JavaScript runtime ✨🐢🚀✨
Role in this project:
Back-end Developer
Back-end DeveloperContributions:107 reviews, 30 commits, 34 PRs in 1 year 10 months
Contributions summary:Momtchil contributed to the Node.js runtime, focusing on the HTTP/2 implementation. Their work involved fixing bugs related to data reinjection and unsupported specifiers within the HTTP/2 module. The user also made changes to the stream handling and event binding within the HTTP/2 core, ensuring proper functionality of the JSStreamSocket. Additionally, the user updated tests related to these changes and made improvements to the performance hooks.
windowsnode-jsjavascriptlinuxruntime
libuv/libuv
Oct 2020 - Feb 2022
Cross-platform asynchronous I/O
Role in this project:Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:3 reviews, 5 commits, 10 PRs in 1 year 4 months
Contributions summary:Momtchil contributed to bug fixes and performance improvements within the libuv library. They addressed regressions in process title setting on Linux and macOS platforms. Their work involved checking for partial `copy_file_range` support on Unix systems and fixing a flaky file system test. Furthermore, the user added a benchmark for `uv_queue_work` jobs.
unixunicornsasynchronouswindowsio
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