Jay Tseng
Old Toronto, Ontario, Canada
Summary
🤩
RockstarJay Tseng is a seasoned blockchain engineer with over a decade of software development experience in Java and C++, currently building resilient systems at Crypto.com from Old Toronto. He has deep expertise across p2p networking, consensus, VM integration, high-performance messaging and key-value databases, and has led teams delivering multi-million dollar blockchain projects. At AION he architected and optimized core blockchain components and at Ethermint contributed notable performance improvements to EVM log storage and RPC bloom filters, underscoring his focus on efficiency and reliability in open-source infrastructure. He has a proven track record of hardening distributed systems—once identifying and patching a security flaw that protected a $40M distribution system—and consistently translates benchmarking insights into production gains. Pragmatic and hands-on, Jay blends systems-level thinking with practical API and protocol design to solve performance and security challenges across fintech and IoT domains.
9 years of coding experience
Github Skills (8)
evm10
cosmos-sdk10
go10
ethereum10
blockchain10
testing9
performance-optimization9
rpc8
Programming languages (9)
Github contributions (5)
evmos/ethermint
Aug 2021 - Oct 2022
Ethermint is a Cosmos SDK library for running scalable and interoperable EVM chains
Role in this project:
Backend Developer
Backend DeveloperContributions:25 reviews, 10 commits, 7 PRs in 1 year 1 month
Contributions summary:Jay primarily focused on optimizing the performance of transaction log storage within the Ethermint EVM implementation. They revised how logs are stored, implemented store iterators, and simplified log setting, with significant code changes in `x/evm/keeper/keeper.go`. Additionally, the user benchmarked the EVM keeper, state database, and state transition, adding test cases and modifying the code to handle dynamic transaction fees. Further contributions included applying bloom filters in the RPC and fixing various test cases, highlighting a focus on improving the efficiency and reliability of the EVM module.
golanginteroperablescalableethermintethereum
JayT106/cosmos-sdk
Jul 2021 - Feb 2024
:chains: A Framework for Building High Value Public Blockchains :sparkles:
Contributions:1 PR, 134 pushes, 30 branches in 2 years 7 months
blockchainchainsblockchain-networksparklesblockchains
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