Full Stack Engineer shipping across the entire stack — smart contracts, backend APIs, frontend apps, blockchain indexers, and cloud infrastructure.
Currently at Startale building Astar Network, Soneium, and Strium.
| Domain | Stack |
|---|---|
| Contracts | Solidity, ERC-7802, Chainlink CCIP, Account Abstraction, OpenZeppelin |
| Backend | NestJS, FastAPI, GraphQL, REST, PostgreSQL, MongoDB, Redis |
| Frontend | Next.js, React, Vue.js, TanStack Start, TypeScript |
| Indexers | The Graph, Subsquid |
| Infra | Kubernetes, Terraform, AWS EKS, ArgoCD, Docker, CI/CD |
- Implemented first ERC-7802 + Chainlink CCIP cross-chain bridge — passed Cyfrin security audit
- Deployed bridge contracts handling millions in TVL with zero security incidents
- Distributed SBT to 427K+ addresses with 60% gas reduction via batch minting
- Built Startale App (Click the link and use it!) — Soneium's Superapp with Account Abstraction, Uniswap V4, Kyo Finance, and USDSC
- Built Soneium Score — Score campaign for Soneium ecosystem with DeFi TVL indexing
- Built quant trading platform end-to-end: execution engine, analytics, infrastructure
- dr-manhattan — Unified prediction market API (Polymarket, Kalshi, Limitless) in TypeScript and Rust
- evm-kms-signer — AWS/GCP KMS Ethereum signer for viem
- solana-kms-signer — AWS KMS Solana signer (ED25519)
- chainlink-ccip-erc7802 — ERC-7802 + Chainlink CCIP reference implementation
- arc-devtools-mcp - The DevTool MCP for Arc (The Browser Company) using Apple Script and Typescript
- bot-solana-wallet-tracker - A recursive transaction history crawler for Solana blockchain that builds hierarchical transfer trees using Solscan API and web scraping.
- oh-my-renesas - OpenCode plugin for Renesas RA MCU development — 4 AI agents, 17 tools for FSP, FreeRTOS, J-Link, and more.
- giwa-bridge-and-faucet - Next.js based web application for Upbit's Giwa chain L1 <> L2 bridge and community based faucet
- Astar Portal — Astar Network's main portal application
- TanStack/Router
- cadamsdev/image-optimizer-action
- code-yeongyu/oh-my-openagent
- gtg7784/howcryptoworksbook-kr
- A Korean translation of the How Crypto Actually Works: The Missing Manual
- junhoyeo/tokscale
- subsquid/docs
- MetaMask/metamask-extension
- LedgerHQ/app-ethereum
- LedgerHQ/embedded-application-tools
- squid-typeorm-store
- Typeclaw
- **agent-messenger
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