Tim Chevalier
Software Developer at Igalia
Oakland, California, United States
Summary
🤩
Rockstar🎓
Top SchoolTim Chevalier is a seasoned software developer with 22 years of experience building reliable systems across language runtimes, cloud infrastructure, and internationalization tooling. Based in Oakland, he currently contributes at Igalia to JavaScript and WebAssembly language features and leads language support for internationalization, drawing on deep compiler and runtime experience from roles at Mozilla and Google. His open-source work includes meaningful contributions to ICU (MessageFormat 2.0 preview for ICU4C) and low-level refactors in the Rust rand library, signaling expertise in localization, low-level systems code, and language design. Tim’s background spans SRE at Google App Engine, HTTP routing at Heroku, and Haskell-backed cloud services, showing fluency across production systems and multiple languages. He has also taught computer science at college and pre-college levels and worked in healthcare-adjacent roles, revealing an unusual blend of technical depth, pedagogy, and real-world caregiving experience. Quiet about job hunting, he focuses on impactful engineering and open-source improvements rather than recruiting.
22 years of coding experience
11 years of employment as a software developer
MS, Computer Science, MS, Computer Science at University of California, BerkeleyPh.D (noncompleted), Computer Science, Ph.D (noncompleted), Computer Science at Portland State UniversityBA, Computer Science, Mathematics, BA, Computer Science, Mathematics at Wellesley College
English, French
Github Skills (14)
i18n-js10
randomization10
algorithms10
c-language10
rust10
ember-i18n10
cpp10
cprogramming-language10
rails-i18n10
icu4c10
unicode10
api-design9
icu9
cplus8
Programming languages (11)
Github contributions (5)
unicode-org/icu
Jan 2023 - Mar 2025
The home of the ICU project source code.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:122 reviews, 55 PRs, 11 pushes in 2 years 2 months
Contributions summary:Tim contributed to the ICU project by implementing a tech preview of MessageFormat 2.0 functionality for the ICU4C library, focusing on the `messageformat2.cpp` file and related header files. Their work included adding the initial implementation, introducing a configuration flag to disable the functionality, and refactoring the code. They also added missing API tags for MessageFormat 2 methods and constants, and removed the MF2 formatter caching optimization.
cppc-plus-plusicu4cunicode-consortiumicu4j
rust-random/rand
Jun 2012 - Jul 2013
A Rust library for random number generation.
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits in 1 year
Contributions summary:Tim contributed to the `rand` library, primarily focusing on refactoring and restructuring code within the `libcore` module. Their commits involved transitioning code to use classes, making move operations explicit, and removing deprecated features. They also reverted a change related to dereferencing. This indicates a focus on improving code clarity and potentially updating the library to newer Rust standards.
rust-libraryprngrustsat-solverrandom-generation
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