Solidity Developer

Designed and implemented a testnet-stage DAO and tokenization smart contract system focused on governance, treasury management, role-based permissions, and secure proposal execution. Built modular Solidity contracts for per-asset token flows, DAO authorization, revenue-distribution logic, and treasury operations using EVM-compatible tooling. Implemented test-driven workflows with Foundry and Hardhat, including coverage checks, invariant testing, and integration support for backend services. Supported a NestJS-based Web3 backend integration layer with API documentation for product and engineering teams.

Developed, tested, and deployed EVM smart contracts on Polygon for Web3 product features. Built smart contract components for donation, benevolence, crowdfunding, marketplace, and volunteer-management use cases. Worked with Solidity, Hardhat, TypeScript, OpenZeppelin, Web3.js, and Wagmi to support backend and frontend integration readiness.

Designed and delivered a metaverse asset suite on Arbitrum, including ERC-20, ERC-721, and ERC-1155 contracts. Built Parcel Land NFT, Avatar NFT, Diamond ERC-20 token, in-game marketplace logic, and multi-standard airdrop utilities. Created test and deployment workflows using Solidity, Hardhat, TypeScript, and OpenZeppelin.

Built and shipped production NFT contracts on Ethereum-based environments, collaborating with product and engineering teams across multiple release cycles. Owned feature delivery from planning and implementation to testing, deployment support, and integration readiness. Implemented ERC-721A NFT contracts with IPFS metadata and EIP-2981 royalty support using Hardhat, TypeScript, and OpenZeppelin. Selected project highlights: League of Guardians NFT: ERC-721A collection with IPFS metadata, gas-optimized batch minting, marketplace compatibility, and on-chain royalties.

Developed a prototype employee-data DApp using Solidity, Truffle, Ganache, and a basic web interface for contract interaction. Documented blockchain solution ideas and tested contract interaction flows for early-stage product validation.