Wei Tang
Chief Engineer And Co-founder at Innohat Limited
Hong Kong, China
Summary
🤩
Rockstar🎓
Top SchoolWei Tang is a Chief Engineer and co-founder with 12 years of hands-on experience building blockchain and backend systems from Hong Kong. He leads product engineering at Innohat (Uphard, SnapViva) while actively founding bitarray and contributing deeply to high-profile open-source projects like Polkadot/Substrate, Parity/Ethereum, and go-ethereum. Wei’s work spans full-stack UI tweaks for Polkadot apps to low-level client and EVM improvements—implementing RPCs, transaction-pool refactors, serialization support, and new opcodes—demonstrating both systems-level rigor and product-minded pragmatism. He brings a hacker’s curiosity (including hacking Common Lisp for iOS) and startup experience from AppWorks to bridge research-grade blockchain primitives with shipping products. Notably, his contributions to Ethereum compatibility layers and Substrate runtime upgrades reflect a rare blend of protocol expertise and practical integration.
12 years of coding experience
AppWorks #9Hacker SchoolBachelor of Science (B.Sc.), Computer Science, Bachelor of Science (B.Sc.), Computer Science at Hong Kong Baptist University
lojban, English
Stackoverflow
43reputation
931reached
4answers
1question
Github Skills (58)
json-rpc10
opc10
substrate10
transaction10
javascript10
transactional10
runtimes10
apidoc10
peer-to-peer10
evm10
bitcoin10
virtual-machine10
bitcoins10
peer-connection10
ui-design10
Programming languages (23)
Github contributions (5)
polkadot-evm/frontier
Nov 2018 - Jan 2023
Ethereum compatibility layer for Substrate.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:427 reviews, 672 commits, 618 PRs in 4 years 3 months
Contributions summary:Wei focused on implementing and refining core functionalities within the EVM compatibility layer for Substrate. Their contributions involved adding missing template files to the build, patching the trie implementation, and incorporating unimplemented placeholders for Ethereum-specific logic. Additionally, the user worked on making keccak-hasher and rlp compatible with the Substrate primitives, laying the groundwork for integration with Ethereum tooling. Moreover, they implemented several new APIs.
substrateethereumrustblockchainevm
ethereumproject/go-ethereum
Jun 2017 - Mar 2018
Go language implementation of the original/classic design of the Ethereum protocol
Role in this project:Back-end Developer
Back-end DeveloperContributions:92 commits, 26 PRs, 86 pushes in 8 months
Contributions summary:Wei primarily contributed to the `go-ethereum` repository by implementing and fixing core functionalities related to the Ethereum Virtual Machine (EVM) and the peer-to-peer networking layer. They added a debug API endpoint to check for the existence of accounts, which impacts gas cost calculations. They also made changes to the peer-to-peer layer to handle the DAO fork and address logic issues. Additionally, the user worked on integrating SputnikVM for state transition in the project and implemented the difficulty bomb diffusion.
golangethereumblockchaingo-languageethereum-protocol
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