Trading System · EVM DeFi Protocol · Web3 Security
> Name : Kevin Leung
> Focus : Trading System · Smart Contract Security · EVM Internals · DeFi Protocols
> Stack : C++ (Low-Latency Trading) · Solidity · Foundry · Rust
> Goal : Competitive security auditor @ Code4rena / Sherlock
> Now : Exploit reproduction · CTF grindingSmart Contract & DeFi
Systems Programming
2025/08-2025/10 · Trading System C++ Engineer
2023/01-2025/04 · EQ Consulting · Senior C++ Engineer
2017/12-2021/12 · AP Capital Management (Hong Kong) · Senior C++ Engineer
2013/08-2017/10 · Game Backend C++ Engineer[✓] Uniswap V2 / V3 internals — sqrtPrice, tick, feeGrowth, tick bitmap
[✓] EVM deep dive — account model, storage layout, EIP-1967, EIP-1153
[✓] Safe smart account architecture — proxy, delegatecall, modules
[✓] Solidity security patterns — reentrancy, CEI, flash loans, proxies
[✓] Damn Vulnerable DeFi
[·] Historical exploit reproduction (DeFiHackLabs) [in progress]
[▸] ETHGlobal hackathon — DeFi/security tooling [upcoming]
[○] Code4rena / Sherlock competitive audits
[○] Public audit portfolio
[✓] ZK fundamentals — completeness, soundness, zero-knowledge-puzzles
[✓] SNARK vs STARK — trusted setup, FRI, proof size trade-offs
[·] Circom / Groth16 circuit design [in progress]
[○] PLONK / Halo2 / Noir
[○] zkEVM & rollup internals (zkSync, Scroll, Polygon zkEVM)
[○] ZK application audits — bridges, privacy pools, proof verification
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│ GITHUB STATS · 2026-06-09 06:08 UTC
├──────────────────────────────────────────────────────┤
│ Public repos 41 Stars 6 │
│ Followers 8 Following 42 │
│ Commits(year) 298 PRs 0 │
│ Commits(30d) 36 Issues 13 │
└──────────────────────────────────────────────────────┘
Top languages
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C ██████████████████ 4 repos
Solidity ██████████████░░░░ 3 repos
Rust █████████░░░░░░░░░ 2 repos
JavaScript █████████░░░░░░░░░ 2 repos
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Open to collabs on DeFi tooling & smart contract security research
"The map is not the territory — read the source code."