Design and development of EVM-based Web3 systems, combining smart contracts with reliable off-chain infrastructure. Focused on protocol architecture, deterministic state management, event-driven systems, and clear separation between canonical on-chain state and derived application data.
- Smart contract development in Solidity (EVM)
- DeFi protocol design and financial primitive development
- Contract testing, validation, and security analysis using Foundry and Hardhat
- On-chain state modeling, invariants, and gas-aware architecture
- Backend infrastructure for blockchain systems using Node.js and TypeScript
- Event-driven architectures, indexing pipelines, and derived state management
- Blockchain integration using ethers.js and wallet-based transaction flows
- Frontend interfaces for decentralized applications with React
- Blockchain-based audit provenance system that makes protocol evolution and audit integrity cryptographically verifiable on Ethereum.
- Implements an on-chain registry for protocol versions, audit metadata, commit hashes, auditor attribution, and timestamped records.
- Uses
keccak256hashing to create verifiable links between off-chain audit artifacts and immutable blockchain records. - Built a complete Web3 flow: MetaMask authentication → transaction signing → smart contract execution → blockchain state synchronization.
- Smart contract deployed on Ethereum Sepolia with React + TypeScript frontend integration using ethers.js v6.
Stack: Solidity • Hardhat • React • TypeScript • Vite • TailwindCSS • ethers.js • Ethereum Sepolia
- Decentralized protocol MVP combining ERC-20 token economics, NFT-based membership access, staking mechanisms, and DAO governance.
- Designed modular smart contract architecture using OpenZeppelin standards:
- ERC-20 utility token
- ERC-721 membership NFT
- Staking contract with reward mechanisms
- DAO governance layer
- Chainlink-compatible price oracle integration
- Developed comprehensive testing infrastructure using Hardhat v3, Mocha, and Chai, achieving full contract coverage.
- Validated security using static analysis and symbolic execution tools, including Slither and Mythril.
- Deployed and tested on Ethereum Sepolia with frontend wallet integration.
Stack: Solidity • Hardhat v3 • OpenZeppelin • Chainlink • React • TypeScript • TailwindCSS • Slither • Mythril
Smart Contracts
Solidity • EVM • Foundry • Hardhat • OpenZeppelin
Backend & Blockchain Infrastructure
TypeScript • Node.js • ethers.js • PostgreSQL • Event Indexing
Frontend
React • Next.js • Vite • MetaMask
Infrastructure
Docker • Linux • Git
