Hajime Morrita - Software Engineer at Google

Hajime Morrita

Software Engineer at Google

Sunnyvale, California, United States

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Summary

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Senior

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Top School

Hajime Morrita is a software engineer with 17 years' experience specializing in client-side performance across Android, web browsers, and embedded systems, currently working on Pixel Camera app performance at Google in Sunnyvale. He has deep expertise in startup latency reduction, jank elimination, telemetry-driven debugging, and system health automation using tools like Perfetto and Simpleperf. His background as a Blink/WebKit contributor who led HTML Imports design and contributions to WebFontLoader and RxAndroid shows a rare blend of standards-level web platform work and hands-on mobile engineering. Notably comfortable across Java, C++, and JavaScript, he pairs low-level instrumentation and build-system DevOps with front-end rendering optimizations to shave milliseconds off real user flows.

17 years of coding experience

14 years of employment as a software developer

Master's degree Computer Science, Master's degree Computer Science at Meiji University

English, Japanese

Stackoverflow

Stats

1reputation

0reached

0answers

0questions

Github Skills (30)

javascript10

rxjavafx10

web-components10

android-build10

webfonts10

makefile10

java10

javas10

dom10

view-binding10

android10

observable10

build-automation10

rxjava10

html10

Programming languages (14)

JavaC++RustMakefileGoHTMLGroovyJupyter Notebook

Github contributions (5)

WICG/webcomponents

Jun 2013 - Dec 2014

Web Components specifications

Role in this project:

Front-end Developer

Contributions:104 commits in 1 year 6 months

Contributions summary:Hajime made several commits focused on the HTML Imports specification, indicating a contribution to web component standards. Their primary work involved modifying and extending the HTMLLinkElement interface, adding support for the async attribute to the link element, and clarifying the content security policy (CSP) implications for imports. They also worked on incorporating changes related to the document.write() method and document.currentScript.

lit-elementweb-componentswebcomponentsshadowweb-component

ReactiveX/RxAndroid

Nov 2014 - Nov 2014

RxJava bindings for Android

Role in this project:

Full-stack Developer

Contributions:13 commits in 21 days

Contributions summary:Hajime made significant contributions to the RxAndroid library, including adding the `bindView()` method for easier integration with Android Views and refactoring the code into new packages. They modified several files related to View and Android observable operations, introduced new features, and refactored the project's structure. The user demonstrated an understanding of RxJava bindings and Android UI lifecycle management.

kotlinrxjavaandroid

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