Jia Li - Software Engineer at Freelance

Jia Li

Software Engineer at Freelance

Yokohama, Japan

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Summary

🤩

Rockstar

🎓

Top School

Jia Li is a seasoned software engineer and solution architect with 10 years of experience building full‑stack web applications and architecting enterprise software, currently based in Yokohama. She has deep front‑end expertise in Angular and Node.js, is a zone.js code owner and Angular collaborator, and has contributed notable fixes to event handling, long stack traces, and browser APIs in the core Angular ecosystem. Jia has balanced roles in startups, consulting for Japanese clients, and freelance work, demonstrating an ability to move between hands‑on coding and higher‑level architectural decisions. Her contributions to angular/zone.js and angular/angular show a focus on robust event management and cross‑browser compatibility—skills that reduce subtle runtime bugs in large apps. Known for a quick uptake of new technologies, she combines passion for open source with practical delivery in production systems.

10 years of coding experience

21 years of employment as a software developer

Beijing Institute of Technology

English, Japanese, Chinese

Stackoverflow

Stats

1,701reputation

126kreached

47answers

4questions

Badges

angular

top-5%

testing

top-5%

Github Skills (14)

typescript10

javascript10

typescripts10

event-handling10

front-end-development10

typescript-types10

angular10

testing10

performance-optimization8

zonejs6

async-await6

databinding6

unit-testing6

rxjs6

Programming languages (12)

TypeScriptPowerShellJavaCSSShellStarlarkJavaScriptGo

Github contributions (5)

angular/zone.js

Aug 2016 - Jul 2019

Implements Zones for JavaScript

Role in this project:

Front-end Developer

Contributions:220 commits, 301 PRs, 1745 comments in 2 years 11 months

Contributions summary:Jia primarily contributed to the development and maintenance of the `angular/zone.js` library, a project that implements Zones for JavaScript, by fixing bugs and improving existing code. The user addressed long stack trace rendering issues, patched various event handling issues including `once` and `removeAllListeners` in `EventEmitter`, and ensured correct behavior of event handling with `EventTarget`. Furthermore, the user was responsible for handling the cases where properties should be available and for supporting the patch of the `getUserMedia` and `ResizeObserver`.

javascript

angular/angular

Aug 2017 - Oct 2022

Deliver web apps with confidence 🚀

Role in this project:

Front-end Developer

Contributions:340 reviews, 260 commits, 269 PRs in 5 years 2 months

Contributions summary:Jia's commits focus on improving Angular's event handling, particularly in the context of `addEventListener` and event propagation. They implemented features to correctly handle and remove event listeners within the Angular framework, focusing on performance and compatibility with various browser environments. These changes involved modifications to the `DomEventsPlugin` and associated test files, enhancing event management within Angular applications. Furthermore, they addressed issues related to the use of `AbortSignal` with fetch calls, and fixed several test cases.

reactjavascriptpwanodejsweb-developer

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