Hi, I'm Brian 👋 _{(Sze Hao)}

🌐 Full-Stack Web3 Builder · 🛡️ Smart Contract Auditor · ⚙️ Backend Engineer

_{I ship dApps, Uniswap v4 hooks & on-chain marketplaces — then audit them to make sure they hold.}

🦄 BUILD   UHI10 time-marketplace v4 hook — bonding curve · optimistic escrow · dynamic Fair-Flow fees
🔍 AUDIT   Morpho Midnight — 2H · 1M valid findings, still digging
🦀 LEARN   Rektoff Solana Rust Security & Audit Bootcamp (Cohort 5) — Rust core → Solana program model

• 💼 Software Engineer @ Zchwantech — Java / Spring Boot backend for high-throughput enterprise systems
• 🦄 Building a time-marketplace Uniswap v4 hook in UHI10 (Uniswap Hook Incubator)
• 🛡️ Competitive smart-contract auditor — currently on Morpho Midnight (2H · 1M valid findings)
• 🦀 Leveling up Rust + Solana security through the Rektoff bootcamp (Cohort 5)
• 🏆 3× hackathon winner (2nd place in RalphthonSG, 5th place in PyCon2026) · Huawei ICT National Champion — APAC & Global 3rd
• 🌏 Malaysia (UTC+8) · B.CS (Hons), UTAR

Solidity · Foundry · Uniswap v4 · Chainlink · Next.js · Wagmi/viem

Wallet-connected marketplace for redeemable professional time — creators publish provider inventory, buyers book with ERC-20 TIME credits. Adds a Uniswap v4 TIME/USDC liquidity layer whose TimePoolHook validates booking-aware swap intent through hook data, with EIP-712 signed quotes, slot locking, replay protection, and burn-on-booking accounting handled in BookingManager. Foundry-tested across hook, quote, and inventory failure paths.

React · TypeScript · Three.js / R3F · World Labs · Fal AI · Expo

Turns a single floor plan, sketch, or room photo into a fully walkable 3D world. Generates explorable Gaussian-splat environments through the World Labs API (rendered in real time with the Spark renderer over Three.js / R3F), layers an AI semantic-label system that raycasts Gemini Vision detections back into 3D, adds AI-generated furniture meshes + ambient sound via Fal AI, and ships a companion React Native AR viewer launched from a scanned QR handoff and driven by the phone's fused motion sensors.

Next.js · Convex · GPT-5.5 · Fal AI · Zod · Tailwind

Turns messy labeled image datasets into training-ready assets — surfacing missing labels, likely mislabels, duplicates, and class imbalance before training. A dashboard workflow handles baseline evaluation, human-in-the-loop label/duplicate review, class-balancing plans, re-evaluation, and export of a cleaned dataset manifest with before/after quality metrics — all orchestrated in real time on Convex with multimodal LLM-assisted auditing.

Rust · Anchor · Solana

On-chain blogging dApp built on the Solana / Anchor program model — my first deep dive into Solana program development (School of Solana, Season 8).

Auditware/AuditVault  ⭐ 61  — Obsidian brain for smart contract auditing

• ✅ #1 · Per-sector audit checklist generator (merged) — a re-run-safe Node tool that aggregates the vuln / trigger / impact / fix taxonomy across 2,383 findings into 34 ranked, data-driven checklists, giving auditors a frequency-based prior on what actually breaks in each sector before they read the code.

• 🥇 Huawei ICT Competition 2024–25 (Computing Track) — National Champion 🇲🇾 · APAC Third Prize · Global Third Prize
• 🥈 Ralphthon @SG 2026 — 2nd Place with SnapRoom
• 🚀 AI Engineer SG 2026 & GrabMaps 2026 — shipped DataForge and Personality Map
• 🌐 ETHOnline 2025 — co-built LangDAO, a PYUSD-settled decentralized tutoring marketplace
• 🎓 B.CS (Hons), UTAR — CGPA 3.58

Languages

Web3 & Smart Contracts

App & Backend

Data, Infra & Tools

Building in Web3, day and night. Open to smart-contract audit gigs, DeFi / Web3 collabs, hackathon teams, and research — always up to build something that matters.