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04Security · Smart Contracts

100+ DeFi & ERC-20 smart contract audits at HAECHI LABS — where I learned to read code by asking how it breaks.

Role
Security Auditor · Solidity Dev
Timeline
2019 — 2021
Platform
Ethereum
Impact
$5B+ TVL secured · 10+ contracts shipped
/ Overview

100+ audits of mainnet DeFi & ERC-20 protocols, securing $5B+ in TVL — including PancakeSwap, 1inch, BadgerDAO, and KlaySwap.

Problem

Once live, you can't patch it. One bug = stolen funds.

Approach

Every line by hand. A test per execution path, validated live on testnet. Exhaustive over fast — on mainnet there is no patch.

Result

100+ audits with 30+ critical/high-severity findings, plus 10+ production Solidity contracts to client spec. Every finding shipped with a reproducible exploit scenario — fixed and re-verified before mainnet.

/

What I built

01

DeFi audits — reentrancy, oracle manipulation. A security-first habit I still apply to every frontend I build.

02

Every finding, a reproducible exploit scenario — complex vulnerabilities explained clearly to non-technical stakeholders.

03

In-house Hardhat materially cut audit setup — reusable frameworks adopted team-wide.

04

Production Solidity to client spec — high-stakes financial software under strict deadlines.

Next project · 01

TetherMax