critical systems · applied cryptography
June
Software Engineer · Taipei, Taiwan
Software Engineer specializing in high-performance backend systems, distributed data pipelines, and applied cryptography / ZK systems. My work spans full-stack engineering, high-concurrency architectures, and cross-layer debugging from infrastructure to protocol design.
My proudest build — a live protocol for privacy-preserving finance on Sui. Shield, transfer, swap, stake, and lend assets confidentially with ZK-SNARKs, Merkle trees, and Poseidon. sui-octopus.com ↗
An interactive canvas for system design — drop infrastructure components on a React Flow board and a Go backend checks the topology live against 45 architecture rules, from single points of failure to sync bottlenecks. Exports to Excalidraw, Mermaid, and PDF.
Speech-to-speech AI chat — local Whisper transcribes, Claude answers, browser TTS speaks it back, with barge-in and silence auto-send. Installable as a PWA.
zkWillZero-knowledge circuits for verifiable, privacy-preserving digital inheritance — my thesis work.
Invoice-RWA 🏆 RWA TaiwanSecure invoice lottery on Zircuit, using ROFL (TEE) to guarantee result authenticity and integrity.
payLock 🏆 HOH BestSui SDK for secure paid-data unlocking, built on Walrus and Seal.
deepbook-predict-cliCLI / TUI for Sui DeepBook Predict (binary options), with a 13-slide technical brief. Published on npm.
aes256-gcm-circomFirst Circom circuit to support 128/192/256-bit AES-GCM.
keccak256-circomKeccak-256 circuit at the theoretical-minimum constraint count.
experience
Where I've built.
-
Full-Stack Engineer (Intern)
Elbats Ltd Feb 2026 — Aug 2026 · Hybrid / Taipei- Built full-stack trading and prediction market systems, covering perpetual trading and prediction market workflows from backend APIs and data pipelines through to web and mobile interfaces — turning dense contract and trading logic into something people could actually use.
- Designed and implemented a live-or-nothing pricing mechanism to mitigate excessive broker slippage, cutting monthly order cancellations to single digits.
- Researched and shipped a gasless transaction flow, collapsing an authorization-popup flow into a one-click transaction and saving 10–15 seconds per trade.
- Eliminated a 7–8s stall on sub-tab switching by pushing row filtering out of application-layer memory and down into Postgres — returning only the rows actually needed and cutting redundant data movement by up to ~98%.
- Identified and mitigated critical SDK and smart contract vulnerabilities that could have exposed millions of dollars in user assets to loss.
- Built internal tooling for development workflows and operational recovery, and fixed critical issues beyond assigned repository boundaries.
-
ZK Engineer
Twin3 Dec 2025 — Feb 2026 · Remote- Built a GCP-hosted proving service on Brevis Pico (zkVM), generating ZKPs that validate Human Index integrity for 10,000+ users without exposing private data.
-
Golang Backend Engineer
Aurora Tech Mar 2022 — Jan 2023 · Onsite / Taipei- Developed a CFD trading platform with Gin, GORM, and Kafka, orchestrating deployment via Docker/K8s while holding 80%+ unit and integration test coverage.
writing
Selected writing.
hackathons
Wins from the field.
-
Best Project — Changsha HOH Hacker House Paylock · solo · Sui SDK on Walrus + Seal · Mar 2026
-
Sui Track — Vibe Sui Spring Fest 2026 Octopus · solo · decentralized privacy protocol on Sui · Feb 2026 · demo video ↗
-
Oasis Track — RWA Hackathon Taiwan Invoice-RWA · team tech lead · Oct 2025
-
Circle & Autopass Tracks — ETHGlobal / Walrus Haulout ETHTaipei 2023–2025 · ETHGlobal 2024–2026 · Walrus Haulout 2025
tech stack
- languages
-
- TypeScript
- JavaScript
- Python
- C / C++
- Go
- Move
- Solidity
- Circom
- full-stack
-
- React
- Next.js
- NestJS
- gRPC / REST
- Kafka
- Redis
- ClickHouse
- infra
-
- GCP
- Docker
- Kubernetes
- Postgres
- crypto · zk
-
- Circom
- Groth16
- snarkjs
- Poseidon / Merkle
- AES-GCM
- blockchain
-
- Sui
- EVM
- DeFi
education
Credentials.
-
National Yang Ming Chiao Tung University (NYCU)
M.S. Computer Science
GPA 4.27 / 4.3 Feb 2023 — Dec 2025Thesis: “Linking Eternity: A Blockchain-Based Framework for Verifiable and Privacy-Preserving Digital Inheritance.” Peer-reviewed and published in Electronics 2026, 15(8), 1642 ↗.
- Developed a crypto-asset inheritance system ensuring data integrity, confidentiality, and automated execution.
- Built an automated, modular Circom testing framework featuring constraint benchmarking.
- Published 30+ open-source Circom circuits, including the first to support 128/192/256-bit AES-GCM and a Keccak-256 circuit with the theoretical minimum constraints.
- Ran ZKP masterclasses covering theory through to Groth16.