Bakuchi

I'm research engineer currently hunting bounties & building smart contracts mainly focused on finance.

Open Source Work

grim-reaper: EVM-based on-chain liquidation bot built with Huff language. The contract is highly optimized for gas saving.
idle-tranches: Idle Perpertual Yield Tranches contract.
the-merge-option: Derivative to bet on whether The Ethereum Merge will happen within a specified future block number.
best-yield-yearn-strategy: Yearn StrategyIdleV2, these strategies have currently over $3.5M in assets under management.
0x-order-watcher: Watcher for managing orders tracked by DB in 0x.
prometheasy-besu: Monorepo template for Besu + Prometheus + Grafana + Solidity 🦄.
hardhat-foundry-template: Opinionated template for smart contract development.🚀 Slither + CI + coverage included.

sol-challenge: Smart contracts challenges mainly focused on security-related issues.
smart-contracts-vulns-hacking: Reproducing DeFi hack incidents and collections of security-related issues.
nomad-bridge-exploit-poc: Replaying Nomad bridge hack.

ETH Tokyo 2023, with marmelo, Brian and J: We built BorrowFi - a protocol that aggregates multiple borrow pools. Think 1inch but for borrowing.
ETH Online 2022, with 0xsoe and SeungJu Lee: We buit Napier finance - a fixed-yield app & won four prize.
Gitcoin Bounties: I have worked on 15+ bounties since 2020. Parts of my portfolio is found here.

Monthly progress reports: Report performance, including income and working hours, at bounties and hackathons.
Math of Euler fi leveraged strategy: Math to calculate how many assets should be deposited and recursively borrowed while keeping a health score.
Differeces in flashloan implementation of Aave V1/V2: Dive into flashloan implementation of Aave V1/V2. Written in Japanese.
Pursue gas saving for liquidation contract with Huff language: Optimizing a liquidation contract for Aave V3. Written in Japanese.
Introduction to Yield Space: Explaining Yield Space, an AMM for trading zero-coupon bonds. Japanese version, やさしいYieldSpace is here.
Yield Space: Virtualizing inaccessible reserves: Explaining how the virtual reserves works and why they improve profitability of liquidity providers. Japanese version is here.
Pendle finance V2 and Notional finance V2 AMM simulation: A spreadsheet to simulate AMM of Pendle finance and Notional finance.