Hyunsik Jeong
Senior Researcher at Theori, Inc. (티오리)
Seoul, South Korea
Summary
👤
Senior🎓
Top SchoolHyunsik Jeong is a senior researcher in applied computer security with 10 years of experience, currently working on infosec research at Theori in Seoul. He has a strong competitive background as an active CTF player with expertise in reverse engineering and cryptography, honed through teams like perfectblue and prior research groups at KAIST and POSTECH. His work spans offensive research and vulnerability analysis, including a stint at TALON where he focused on practical exploit techniques. Combining academic rigor from a KAIST masters in information security with hands-on CTF problem-solving, he brings both deep theoretical understanding and pragmatic attack-driven insight. Notably, his profile reflects a persistent pursuit of uncommon technical challenges rather than conventional product engineering.
10 years of coding experience
2 years of employment as a software developer
학사, 창의IT융합공학, 3.74, 학사, 창의IT융합공학, 3.74 at 포항공과대학교석사, 정보보호대학원, 석사, 정보보호대학원 at 한국과학기술원(KAIST)
Github Skills (38)
ctf10
perfect10
blockchain9
rust8
private-key8
faucet8
ethereum7
cryptography7
hash6
sdk6
dump6
key-management6
ccc5
portable-executable5
javascript5
Programming languages (8)
Github contributions (5)
jhs7jhs/codechain-sdk-js
Aug 2018 - Jan 2019
A JavaScript SDK for CodeChain
Contributions:78 pushes, 26 branches in 5 months
codechainjavascriptblockchainsdktypescript
jhs7jhs/infossm.github.io
Jul 2019 - Nov 2021
Contributions:32 pushes in 2 years 4 months
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