Yunjong Jeong
Software Enginner at Klaytn Foundation
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolYunjong Jeong is a software engineer with 12 years of experience specializing in security-sensitive systems, blockchain node infrastructure, and trusted execution environments. A KAIST MS/BS graduate based in Seoul, he has worked on ARM TrustZone and Intel SGX key management at TEEware and now contributes to Klaytn’s Go-based protocol and Solidity compiler integration. His contributions to the official Klaytn repository include implementing CompileSolidityOrLoad and improving compiler test infrastructure, reflecting a practical blend of blockchain protocol and smart contract tooling expertise. Comfortable across Go, C++, TypeScript, Solidity and cryptographic libraries like OpenSSL, he combines low-level systems work with application-facing SDKs. Active in security research since his KAIST hacking club days, he also has hands-on experience in reverse engineering, penetration testing and big-data prototypes. He publishes code and writing online (github.com/blukat29, blukat.me) and can bridge deep research topics to production-grade implementations.
12 years of coding experience
6 years of employment as a software developer
한국과학기술원(KAIST) 부설 한국과학영재학교University of California Santa CruzMaster of Science - MS, Computer Science, Master of Science - MS, Computer Science at 한국과학기술원(KAIST)
Korean, English
Github Skills (6)
smart-contracts10
go10
solidity10
blockchain-platform10
blockchain10
testing9
Programming languages (16)
Github contributions (5)
klaytn/klaytn
Feb 2022 - Jan 2023
Official Go implementation of the Klaytn protocol
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 960 reviews, 164 commits in 11 months
Contributions summary:Yunjong primarily contributed to the core Klaytn protocol implementation, specifically focusing on the Solidity compiler integration. They added the `CompileSolidityOrLoad` function to handle Solidity source files, with a fallback mechanism to load compiled JSON files. Furthermore, the user implemented various testing functions for the Solidity compiler and fixed the test environment. The contributions demonstrate a focus on blockchain development and smart contract compilation within the Klaytn ecosystem.
golangblockchainklaytnblockchain-platform
kaiachain/kaia
Jun 2024 - Apr 2025
Contributions:3 releases, 416 reviews, 183 PRs in 9 months
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