Full-Stack Builder & Multi-Chain Smart Contract Engineer
🥯 Builder of Bagel Finance
🏆 Multi-time Global Hackathon Winner
⚡ Since 2017 in Crypto
🧠 Core Contributor to GBrain, Y Combinator CEO Garry Tan's AI second brain
| Project | Achievement | Description | Links |
|---|---|---|---|
| Bagel Finance | 🥇 1st Place @ TON Bootcamp Bangkok | DeFi for index-style portfolio investing on TON | App • Details |
| mira-harness | 🥇 1st Place, Mira AI Track @ STON.fi Vibe Coding Hackathon Wave 2 | A CLI + MCP dev-tool for communicating with @mira | Details • npm • GitHub |
| Opensource Orchestra | 🥇 1st Place, ENS Track @ ETHGlobal 2025 New Delhi | Giving-economy platform connecting Ethereum musicians and communities | App • Demo • GitHub |
| Jupiter Funds For Mike's Baby | 🥇 1st Place, Jupiter Prize @ Clawathon Tokyo Edition | Two AI agents debate Jupiter yield moves; user vote settles onchain on Solana | Demo |
| Zen Scan | 🥉 3rd Place @ TON x AWS Hackathon | Mindful Blockchain Security on TON | GitHub |
| PHR Onchain | 🥉 3rd Place @ Tokyo Bowl Hackathon | Bring Personal Health Record on-chain | Demo |
| Ghost Yield | 🚀 @ETHGlobal HackMoney 2026 | Tokenize idle L2 compute, price via Uniswap v4, arbitrage via Yellow, settle in USDC. | Demo • GitHub |
| TonFusion | 🚀 @ETHGlobal 2025 Unite DeFi | Extending 1inch Fusion+ cross-chain swaps to TON Blockchain | Demo • GitHub |
| Toke Of App | 🚀 @ETHOnline 2025 | PayFi Payroll & Gifting with Multi-Wallet Distribution and Automation | Demo |
| MagoHODL | 🚀 @Base Japan Ogiri Hackathon | dApp that locks crypto and passes to future generations | GitHub |
| Bonsai to Earn | 🚀 @Base Japan Vibe Coding Mini Hackathon | Bonsai to Earn — a Base/Farcaster mini app | GitHub |
| Hawk & Dove | 🚀 @STON.fi Vibe Coding Hackathon Wave 1 | Moltbook-style Agents Debate & Swap | GitHub |
- Blockchain / DeFi Engineering
- Multi-chain smart contract development (EVM / TON / SUI / Bitcoin)
- DeFi protocol design, vault development, and crypto payment automation
- Full-stack Web Development
- Production-ready frontend & backend
- Cloud infrastructure, CI/CD, and database design
- Shipping-focused Founder
- Multi-time hackathon winner with live products and real users
- Multi-chain protocol & DeFi engineering — cross-chain bridges, atomic swaps (HTLC), vault architectures, and PayFi automation
- Mainnet-deployed contracts across hackathon-winning products with real users
Supported Chains: EVM (Solidity) • TON (FunC) • SUI (Move) • Bitcoin Script
EVM — Solidity, Foundry/Hardhat, PayFi & DeFi automation, cross-chain
- Smart Contract Development
- Solidity • Foundry & Hardhat development frameworks
- PayFi & DeFi Automation
- Multi-wallet distribution • Multi-strategy allocation • AAVE, Morpho Vault, Uniswap V2 integrations
- Gelato automation integrations
- Cross-Chain Extensions
- Cross-chain bridge via Nexus Widgets
- 1inch Fusion+ extensions to TON Blockchain
- Hash Time-Locked Contracts (HTLC) for cross-chain atomic swaps
- Front-running resistance via commit-reveal
TON — FunC contracts, Jetton, Blueprint, DEX integrations
- FunC Smart Contracts
- Two-layer vault architecture • Index token minting & redemption
- Hash time-locked contracts with secret verification
- Jetton Development
- Multi-jetton basket reception • Off-chain monitoring with TON API
- Infrastructure
- TON payload & gas optimization • Omniston / DeDust / STON.fi integrations • Blueprint build/test/deploy
SUI — Move contracts, on-chain vaults, mainnet deployments
- Move Smart Contracts
- On-chain vaults with atomic rebalance • Multi-reserve lending strategies • Share-token accounting
- Deployment
- Verified mainnet deployments
Bitcoin Script — Legacy/Segwit/Taproot, UTXO, Bitcoin Core
- Bitcoin Script Implementation
- Legacy transactions (P2PKH, P2SH, multisig) • Segwit v0 (P2WPKH, P2WSH)
- Taproot (P2TR, Schnorr signatures, TapTrees) • Signature hash evolution & flags
- Transaction & script-level timelocks
- Development Tools
- UTXO management & raw transaction building • Bitcoin Core integration (TestShell, regtest)
Next.js • React • TypeScript • Tailwind CSS • GraphQL (Apollo)
Go • NestJS • Fastify • Hasura (GraphQL) • Supabase • Prisma • PostgreSQL • MySQL • Redis
AWS • GCP • Azure • Docker • GitHub Actions CI/CD
Always open for collaboration and open-source innovation.
- 🐦 X (Twitter) — @Masashi_Ono0611
✈️ Telegram (direct contact) — @Masashi_Ono0611