Keith Yeung
Director at Software consulting business
Hong Kong, China
Summary
🤩
Rockstar🎓
Top SchoolKeith Yeung is a director and seasoned software engineer with 11 years of experience building high-performance systems, browser engines, and blockchain runtimes from Hong Kong. He combines deep systems and language expertise—Rust, TypeScript, Java—with a strong track record contributing to major open-source projects like Servo, Cranelift, Wasmtime, and Polkadot/Substrate. At Parity he helped ship core runtime features and XCM cross-consensus messaging, and his open-source work includes non-trivial storage and parser innovations such as ChildTriePrefixIterator and value aliasing. He also brings practical product impact from industry roles including a Rust compiler rewrite at F5 (5x speedup) and architectural work on Phala and Polygon codebases. Fluent across multiple languages and comfortable in research-driven domains like dynamic binary instrumentation and parallel browser engines, he blends hands-on coding with system-level thinking. An unusual blend of compiler, browser, and blockchain experience makes him adept at solving concurrency, parsing, and storage problems across the full stack.
11 years of coding experience
8 years of employment as a software developer
Bachelor’s Degree Computer Engineering, Bachelor’s Degree Computer Engineering at University of Waterloo
English, Chinese, Chinese, French, Japanese
Stackoverflow
311reputation
13kreached
10answers
1question
Github Skills (74)
parser10
python10
compiler-development10
testing10
rust-wasm10
url-parsing10
uuid10
system10
type-system10
code-generation10
network-protocol10
datastructures-algorithms10
backend10
cm10
fetch-api10
Programming languages (21)
Github contributions (5)
paritytech/cumulus
Apr 2021 - Jan 2023
Write Parachains on Substrate
Role in this project:
Back-end Developer
Back-end DeveloperContributions:282 reviews, 158 commits, 53 PRs in 1 year 9 months
Contributions summary:Keith contributed to the `cumulus` repository, which focuses on writing Parachains on Substrate. The primary focus of the contributions revolved around declaring and handling error types, upgrading pallets to FRAMEv2, and incorporating new syntax for MultiLocation. Further commits involved enhancements to XCMP queue functionality, including overweight message handling, and general refactoring of code within the XCMP queue. These contributions suggest a focus on core logic and system-level improvements.
substrate
paritytech/polkadot
Jun 2021 - Jan 2023
Polkadot Node Implementation
Role in this project:Back-end Developer
Back-end DeveloperContributions:640 reviews, 230 commits, 102 PRs in 1 year 7 months
Contributions summary:Keith primarily worked on the Polkadot node implementation, focusing on codebase modifications. They implemented a new naming scheme for event enums and GenesisConfig fields. The user updated the Substrate dependencies and modified chain specification files for various testnets. These changes involved modifying blockchain configuration settings and adjusting code related to staking, balances, and other core components, likely involving the Rust programming language.
polkadotparityblockchainrustnode
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