Dongsamย Byun
Blockchain Core Protocol Security Engineer at B-Harvest
South Korea
Summary
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Top SchoolDongsam Byun is a Blockchain Core Protocol Security Engineer with 10 years of experience specializing in Cosmos-SDK, CometBFT/Tendermint and EVM integrations. He has led protocol and security work at B-Harvest and contributed to Gravity-DEX and liquidity modules for major Cosmos projects, combining smart contract auditing with validator operations and reliability engineering. His background spans Go, Rust, Python and Solidity, and he has built tokenized fund designs, AMM modules and production DPoS validator systems ranked top-tier in Cosmos Game of Stakes. Dongsam also brings applied ML and backend experience from earlier roles, giving him an uncommon blend of security-focused protocol engineering and data-driven system optimization. He is an active open-source contributor and consultant in the Cosmos/Tendermint ecosystem, known for customizing core software for analysis and validation. Based in South Korea, he pairs academic training (MS in CS) with hands-on delivery across auditing, module development, and validator infrastructure.
10 years of coding experience
4 years of employment as a software developer
Master of Science - MS Computer Science and Engineering, Master of Science - MS Computer Science and Engineering at Korea UniversityBachelor's degree Computer Science and Engineering, Bachelor's degree Computer Science and Engineering at Dongguk University
Stackoverflow
36reputation
2kreached
2answers
0questions
Github Skills (118)
geth10
python10
cosmos10
cryptocurrency10
abi10
deep-learning10
p2p10
solidity10
api10
sdk10
golang10
staging10
python-interface10
bitcoin10
distributed-systems10
Programming languages (11)
Github contributions (5)
tendermint/budget
Jul 2021 - Apr 2022
Budget is a Cosmos SDK module that implements budget functionality.
Contributions:7 releases, 39 reviews, 110 commits in 9 months
cosmos-sdkblockchainsdkbudgetcosmos
solidity-korea/solidity-docs-kr
Mar 2018 - Nov 2018
๐ฐ๐ท Solidity Documentation for Korean
Contributions:18 commits, 11 PRs, 18 pushes in 8 months
ethereumdapps-developmentsoliditysolcsmart-contracts
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