Software Engineer · Seoul · Remote
lab
ByeongSu
Hong.
Distributed systems in Rust and Go. 8 years in blockchain infrastructure, now co-founding Ducktape.
Co-founder
Jul 2026 – Present
Ducktape Industries
Ducktape
Building a workspace where a team and its AI agents share one state: chat, a Git forge with code review, and sandboxed compute, replicated across the team's own validator network. I co-built its consensus and execution layers in Rust.
RustWebAssemblyConsensus
Protocol Engineer
Jan 2022 – Feb 2026
Manythings · Seoul
Mitosis
Designed the LRT vault system and core L1 components: validator staking, reward settlement, VLF vaults and hub-chain protocols. Took the contracts through external audits.
cw-hyperlane
Primary author of Hyperlane's official CosmWasm implementation (multisig ISM, warp routes). Supported its external audit.
Hyperlane Validator Operations
Built and operated high-availability Hyperlane validator infrastructure across 125+ chains on Kubernetes with ArgoCD GitOps and Prometheus/Grafana observability. Reduced external RPC dependency by 28% (97k → 70k daily calls) through request batching and caching.
Kaizen
Sole engineer on the alpha of a price-range prediction market: an event-sourced execution engine with parallel execution and versioned state (RocksDB + JMT), a CEX price oracle, and a TypeScript SDK.
GolangRustSolidityTypeScript
Software Engineer
Jan 2021 – Dec 2021
Terraform Labs · Seoul
Anchor Protocol
Led eth-anchor, the Ethereum bridge for Anchor Protocol, with a two-phase init/finish flow to handle cross-chain latency.
Pylon Protocol
Proposed and led Pylon Protocol, a yield redirection platform on Terra, as an internal incubation. Wrote the core CosmWasm contracts and shipped them through audit to production.
Mirror Protocol
Built Mirror Protocol's Ethereum-side LP incentive contracts and took them through audit to production.
GolangSolidityRustTypeScript
Blockchain Engineer
Mar 2018 – Jan 2021
AB180 · Seoul
Airbloc Protocol
Wrote the Solidity contracts for a data-exchange protocol (100% branch coverage) and the Go and Python SDKs that replaced its P2P node. Built a Go worker that synced consent records on-chain daily.
Airbloc Data Pipeline
Built real-time and batch data pipelines for enterprise partners and moved them from AWS Lambda to Kubernetes on EKS.
GolangSolidityPythonKubernetes