Ziran Sun
Software Engineer & Partner at Igalia
United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolZiran Sun is a software engineer and partner at Igalia with 14 years of experience building and modernizing web platform software, previously serving as Principal Open Source Engineer and Deputy Team Lead at Samsung. He combines deep systems and full-stack skills with a focus on web standards—contributing substantive Python 2→3 refactors to the widely used web-platform-tests wptrunner and implementing CSS/grid and form control fixes in the WPEWebKit port. Comfortable in both test automation and core engine/LayoutTest work, he brings practical experience shipping cross-platform browser behavior fixes and infrastructure improvements. Trained as a PhD in Optical Wireless Communications, he blends rigorous research instincts with pragmatic engineering, often tackling compatibility and modernization challenges that keep legacy codebases healthy.
14 years of coding experience
15 years of employment as a software developer
PhD, Optical Wireless Communications, PhD, Optical Wireless Communications at University of Warwick
Github Skills (24)
webbrowser10
web-platform10
servo10
python10
css10
css-grid10
test-runner10
webengine10
grid-layout10
automation10
six10
html10
automations10
rust10
test-automation10
Programming languages (8)
Github contributions (5)
WebPlatformForEmbedded/WPEWebKit
Jul 2014 - Jun 2022
WPE WebKit port (downstream)
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:86 commits in 8 years
Contributions summary:Ziran appears to be a full-stack developer contributing to the WPE WebKit port. They are fixing issues related to CSS and grid layout, as evidenced by their contributions to CSS writing modes, CSS grid functionality, and grid auto-flow. They are also involved in tasks related to HTML form controls, specifically fixing issues with selection ranges and behavior. The user primarily interacts with Source/WebCore files and has contributed to multiple LayoutTests, which suggests a focus on web platform standards compliance and user interface element implementations.
wpedownstreamwebkit
web-platform-tests/wpt
Jan 2020 - Dec 2022
Test suites for Web platform specs — including WHATWG, W3C, and others
Role in this project:Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:18 reviews, 121 commits, 194 PRs in 2 years 11 months
Contributions summary:Ziran primarily focused on refactoring and modernizing the wptrunner test runner within the repository, particularly adapting the code to be compatible with Python 3. Their work involved updating imports, replacing deprecated functions and classes, and converting code to be compatible across Python 2 and Python 3. The contributions were mainly focused on core modules that support test execution and involved replacing older Python libraries with their modern equivalents.
microsoft-edgetest-runnerspecssafarifirefox
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