Hwangjae Lee
Gyeonggi, South Korea
Summary
🤩
Rockstar🎓
Top SchoolHwangjae Lee is a software engineer with a unique blend of embedded systems and blockchain operations experience, spanning over a decade of hands-on work and four years focused on blockchain validation and open-source contributions. He spent a decade at Samsung as a staff engineer building Android display kernel drivers, HAL services, and device integrations for flagship smartphones, and has applied that low-level systems expertise to motor control, LED displays, and hobby self-driving RC projects. Since 2021 he has been a validator and contributor in the Cosmos ecosystem (IBC relayer, cosmos-sdk) and operates nodes for Osmosis, Chihuahua, Umee, Namada and Aptos, combining production-grade operations with protocol-level development. Based in Gyeonggi, South Korea, he pairs pragmatic engineering with a strong open-source ethos, comfortable moving between Linux kernel drivers and decentralized network infrastructure.
4 years of coding experience
10 years of employment as a software developer
전자공학과, 전자공학과 at 단국대학교
Github Skills (63)
cosmos-sdk10
modular10
swap10
tendermint10
aptos10
distributed-systems10
cosmos10
cryptocurrency10
privacy10
go10
state-machine10
ethereum10
cryptography10
fault-tolerant10
blockchain10
Programming languages (10)
Github contributions (5)
meetrick/aptos-core
Oct 2024 - Oct 2025
Aptos is a layer 1 blockchain built to support the widespread use of blockchain through better technology and user experience.
Contributions:15 pushes, 5 branches in 1 year
meetrick/cometbft
Jan 2025 - Dec 2025
CometBFT (fork of Tendermint Core): A distributed, Byzantine fault-tolerant, deterministic state machine replication engine
Contributions:10 pushes, 5 branches in 11 months
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