Bob Yang
Software Engineer at Facebook
Seattle, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolBob Yang is a software engineer with 12 years of experience building scalable infrastructure and distributed systems, currently working on AI developer infrastructure and build tooling at Facebook in Seattle. He specializes in concurrency, parallel computing, and graph computation with hands-on expertise in Rust, Python, Java, and C++, and a practical web background in PHP/MySQL/JavaScript. At Facebook he has contributed to high-profile open-source build systems (Buck and Buck2), improving task scheduling, dependency tracking, and concurrency safeguards to reduce deadlocks and speed up incremental builds. His academic work in combined physics and computer science at UBC informed research contributions that delivered 2–7x speedups for parallel model checking and prototype compilers for distributed-spec languages. Comfortable across systems from low-level threading to build-system diagnostics and tracing, he blends rigorous research experience with production-grade engineering. Colleagues would note his knack for refactoring core data structures to unlock performance and observability in complex, concurrent codebases.
12 years of coding experience
3 years of employment as a software developer
Combined Honours in Computer Science and Physics, Combined Honours in Computer Science and Physics at The University of British ColumbiaInternational Baccalaureate Diploma Dogwood Diploma (Certificate of Graduation), International Baccalaureate Diploma Dogwood Diploma (Certificate of Graduation) at Sir Winston Churchill Secondary School
English, Chinese, French
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (16)
dependency-management10
debugging10
javas10
debug10
build-system10
rust10
performance-optimization10
multithreading10
java10
concurrency10
thread-safety10
testing9
data-structure9
logging9
versioning9
Programming languages (6)
Github contributions (5)
facebook/buck
Oct 2017 - Jun 2022
A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 reviews, 960 commits, 15 PRs in 4 years 9 months
Contributions summary:Bob primarily worked on adding features to the build system related to task management, specifically in the context of optimizing concurrency and preventing deadlocks. Their contributions include adding synchronization mechanisms to ensure thread safety and prevent compute operations from conflicting when using multiple threads. The user also migrated classes into the existing structure of the framework, and refactored implementations, specifically with Java concurrency tools like ForkJoinPool, and also added test cases.
buckpythonplatformsandroidlanguages
facebook/buck2
Sep 2022 - Mar 2023
Build system, successor to Buck
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 reviews, 244 commits, 5 comments in 6 months
Contributions summary:Bob primarily contributed to the build system, focusing on improvements to the dependency tracking and incremental build processes within the "buck2" build system. Their work involved refactoring core data structures to optimize storage of dependencies, adding logging for debugging, and addressing performance issues related to task scheduling and cycle detection. The user made code changes related to tracing, which indicates a focus on improving the build system's diagnostics and debugging capabilities.
bucksuccessorbuild-system
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