user3
About Me
Hi everyone, I’m Yu Jongmin (k0yote). I’m a blockchain engineer based in Japan with 20+ years of IT experience — including 15 years in game development and 7 years in blockchain. I work as a freelance engineer designing and building NFT infrastructure, DApps, and multi-chain systems.
Background
Coming from a long game development career, I bring a production-engineering mindset to Web3 — focusing on reliability, scalability, and good UX. I particularly enjoy bridging backend, smart contracts, and frontend within a single project.
Tech Stack
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Languages: Go, Solidity, TypeScript (currently learning Rust)
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Backend: Gin, gRPC, sqlc, PostgreSQL, Redis
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Frontend: Nuxt3, Vue.js
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Smart Contracts: Foundry, OpenZeppelin, go-ethereum
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Chains: Ethereum, Polygon, Soneium, Kaia (formerly Klaytn), LINE Blockchain
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Infra: GCP / GKE, Pub/Sub
Areas of Focus
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NFT platforms & GameFi
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MPC wallets (GG20 / tss-lib) and threshold signatures
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Stablecoin payments (JPYC, EIP-3009 gasless transfers)
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CREATE2 deterministic cross-chain deployment
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Web3 accounting & compliance (Japanese regulatory frameworks)