Onur Temizkan
Software Engineer Director at Narval
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolOnur Temizkan is a Software Engineer Director based in London with 11 years of hands-on experience delivering full‑stack systems, from low-latency backends and test automation to polished front-end experiences. He has led engineering at Narval while contributing to Sentry’s JavaScript SDK and notable open-source projects like ESLint and Yarn, improving JS code quality, error tracing, and reliability. His background spans production ML tooling and CUDA optimizations, high-performance React architectures, and infrastructure automation—blending systems-level performance tuning with pragmatic product delivery. Known for improving developer workflows (ci pipelines, linters, codemods) and shrinking build artifacts, he pairs leadership with deep technical craft and a habit of fixing tricky edge-case bugs that surface in real-world stacks.
11 years of coding experience
6 years of employment as a software developer
Master of Science - MS Computer Engineering, Master of Science - MS Computer Engineering at Izmir Institute of Technology
French, English, Turkish
Stackoverflow
79reputation
2kreached
3answers
1question
Github Skills (31)
static-code-analysis10
javascript10
sentry10
ui-components10
testing10
user-interface10
eslint10
regular-expression10
sdk10
front-end-development10
yarnpkg10
html10
error-handling10
nodejs10
refactoring10
Programming languages (8)
Github contributions (5)
getsentry/sentry-javascript
May 2021 - Jan 2023
Official Sentry SDKs for JavaScript
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:211 reviews, 143 commits, 233 PRs in 1 year 8 months
Contributions summary:Onur primarily contributed to the JavaScript SDK for Sentry, with a focus on improving error and performance tracing. Their contributions included implementing new features for capturing and displaying breadcrumbs/DOM attributes. They also addressed issues with browser and HTTP requests, enhancing the accuracy of stack trace parsing. Additionally, they integrated and added support for the Hapi framework to the project.
sentryerror-monitoringravenvuegreenhouse
yarnpkg/yarn
Jul 2017 - Nov 2017
The 1.x line is frozen - features and bugfixes now happen on https://github.com/yarnpkg/berry
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:6 commits, 7 PRs, 12 comments in 4 months
Contributions summary:Onur made several contributions to the yarnpkg/yarn repository, primarily focused on improving the reliability and robustness of the project. They addressed issues related to script execution by handling exit signals, introducing more informative error messages, and adding corresponding test cases. Furthermore, the user updated Jest flow-types to a newer version and converted variables in a gulpfile to constants, demonstrating a commitment to code quality and maintainability.
berryyarnjavascriptpackage-managerfrozen
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.