Andrew John
Principal Backend Software Engineer at Ambient Security
San Jose, California, United States
Summary
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RockstarAndrew John is a Principal Backend Software Engineer based in San Jose with seven years of hands-on experience building reliable server-side systems at Ambient Security. He blends low-level systems work with production backend development, shown by contributions to the HarfBuzz text shaping engine where he optimized performance through bit-level operations and refined core set manipulation features. Andrew also brings strong documentation and developer-experience instincts, having served as a technical writer on high-profile projects like the Google Fonts repository. Comfortable navigating both code and docs, he helps teams ship maintainable, well-documented services that scale. Known for pragmatic refactors and attention to detail, he surfaces subtle improvements that reduce complexity and improve long-term operability.
7 years of coding experience
Github Skills (20)
c-language10
text-manipulation10
html10
cprogramming-language10
typography10
documentation10
data-structure9
algorithm9
algorithms9
web-content9
github9
content-model9
data-structures9
c-library8
c178
Programming languages (8)
Github contributions (5)
google/fonts
Mar 2019 - Dec 2022
Font files available from Google Fonts, and a public issue tracker for all things Google Fonts
Role in this project:
Technical Writer
Technical WriterContributions:150 commits, 128 PRs, 136 pushes in 3 years 9 months
Contributions summary:Andrew's contributions primarily revolve around updating and creating documentation files within the repository. They added and modified HTML files, specifically descriptions, articles, and related content. The edits include adding and formatting text, incorporating images, and updating links. These changes suggest a focus on refining existing content and creating new articles, likely aimed at improving the project's documentation.
google-fontstrackerfontfontswoff
harfbuzz/harfbuzz
Mar 2022 - Mar 2022
HarfBuzz text shaping engine
Role in this project:Back-end Developer
Back-end DeveloperContributions:8 reviews, 7 commits, 5 PRs in 4 days
Contributions summary:Andrew made several contributions related to the core functionality of the HarfBuzz text shaping engine. They added constants and implemented bit shifting operations, optimizing the engine's performance. The user also refactored code, fixed typos, and added new functions to the set library. Furthermore, they implemented features to allow adding sorted arrays of values to sets and added functionality to export set contents to an array.
aatharfbuzzc-plus-plusfontstext-shaping
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