Justine De Caires
Software Engineer at Notion
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJustine De Caires is a software engineer based in San Francisco with 10 years of experience, currently building developer experience at Notion. She previously served as Tech Lead for Twitter’s Home Timeline Performance team, driving cross-functional strategy, mentoring engineers, and delivering measurable wins like an 11% reduction in tweet loading latency and large engineering time savings. An active open-source contributor, she’s worked on the widely used twitter/twemoji project (including maintaining a Twemoji Regex Generator) and has deep experience with PWAs, server-side rendering, and accessibility features. Unusually for an engineer, she pairs a dual BSc in Computer Science and Biochemistry with an NSF-funded research stint and has tackled NP-complete scheduling algorithms, reflecting a rare blend of systems-level product impact and academic rigor.
11 years of coding experience
6 years of employment as a software developer
Bachelor of Science (BSc), Computer Science & Biochemistry, Bachelor of Science (BSc), Computer Science & Biochemistry at Minerva Schools at KGI
French, English, Spanish
Stackoverflow
31reputation
13kreached
1answer
0questions
Github Skills (10)
javascript10
javascripts10
emoji10
html9
css8
build-automation8
git6
material-ui6
dialog6
reactjs6
Programming languages (7)
Github contributions (5)
twitter/twemoji
May 2020 - Mar 2022
Emoji for everyone. https://twemoji.twitter.com/
Role in this project:
Front-end Developer
Front-end DeveloperContributions:8 releases, 15 reviews, 53 commits in 1 year 11 months
Contributions summary:Justine primarily contributed to improving the user interface and functionality of the Twemoji project. Their work involved fixing issues related to image previews, updating links, and ensuring the correct display of emoji. They also made adjustments to the project's build scripts and deployment processes. Furthermore, the user refactored code, removing specific version numbers in multiple places and updating dependencies, optimizing for better performance.
emojiemoticonstwemojitwitterunicode
jdecked/twemoji-parser
Jan 2023 - Apr 2024
A simple library for identifying emoji entities within a string in order to render them as Twemoji.
Contributions:4 releases, 4 reviews, 5 PRs in 1 year 2 months
renderemojistringtwemojiin-order
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