Dina
Bahnasy

I'm a Blockchain Engineer with 4+ years of hands-on experience in Solidity, Chainlink, and full-stack dApp development. I’ve built advanced smart contract systems with Chainlink VRF, ERC20 reward distribution, and factory-based contract deployment. My latest project is EngageFi, a fully on-chain reward campaign platform that lets users participate, win, and claim crypto rewards without admin control. I work with Solidity, React, Wagmi, Hardhat, and OpenZeppelin libraries. I can build or audit smart contracts, launch full dApps, and help you go live fast with secure, gas-optimized code.

Work experience

sartfi.io

May 2021 – Current time

Job title

Blockchain Fullstack Developer

Work experience & achievements

-Built and optimized NFT marketplace contracts using Solidity, supporting ERC721 minting, launchpad mechanics, and auction logic. Integrated with IPFS metadata and ensured secure handling of user funds using OpenZeppelin libraries. -Designed smart contracts for a decentralized tournament-based game. Integrated wallet-based sign-ins, token staking, and reward distribution. Collaborated on backend APIs and frontend dashboard using Node.js and React. -Completed multiple freelance and testnet deployments involving ERC20, ERC721, and Chainlink VRF/Oracle integrations. Delivered secure, testable smart contracts and full-stack Web3 prototypes for early-stage clients.