Victor Jojo-Chibuzo
Foundry & Solidity dev building gas-optimzed Smart Contracts
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Simple DAO Governance System
Built a full DAO with OpenZeppelin's Governor contract, featuring token voting, timelock controls, and treasury management.
Architecture
4 Contracts:
GovToken: ERC20 with voting (1M supply)
Governor: Proposals, voting, execution
TimeLock: 1-hour delay...
sepolia.etherscan.io
Address: 0xdd9ABeDD...D473f08D6 | Etherscan
Contract: Verified | Balance: $0 across 0 Chain | Transactions: 2 | As at Oct-29-2025 10:38:46 AM (UTC)
Custom Smart Contract: OddEvenBetting Game
Built a betting game where players bet ETH on odd/even. Win = 2x payout.
Contract
Uses Chainlink VRF for randomness. Main functions:
placeBet() - player picks odd/even
fulfillRandomWords() - Chainlink callbacks, pays winners
Owner controls...
github.com
GitHub - Jo-joVictor/Foundry-Lottery-: A Lottery that allows users to pick between odd and even, then a random number is generated by Chainlink VRF, modulus(by 2) is used to check if the number is odd or even. And users are given 2X their input if their choice is correct.
A Lottery that allows users to pick between odd and even, then a random number is generated by Chainlink VRF, modulus(by 2) is used to check if the number is odd or even. And users are given 2X the…
GitHub link(view code):
Flow Stablecoin
An overcollateralized stablecoin pegged to $1. Users lock WETH or WBTC at 200% collateral to mint FLW. If collateral drops, anyone can liquidate positions with a 10% bonus.
Stack
Solidity 0.8.20, Foundry, OpenZeppelin, Chainlink. Deployed on Sepolia.
Core Contracts
...
Flow Stablecoin
An overcollateralized stablecoin pegged to $1. Users lock WETH or WBTC at 200% collateral to mint FLW. If collateral drops, anyone can liquidate positions with a 10% bonus.
Stack
Solidity 0.8.20, Foundry, OpenZeppelin, Chainlink. Deployed on Sepolia.
Core Contracts
...
Time-Based Dynamic NFT (Solidity)
Built an ERC721 where the tokenURI changes automatically every 15 seconds using block.timestamp. No transactions or oracles—metadata rotates between 3 IPFS files in real time.
Use cases: evolving NFT art, on-chain game characters, dynamic identity.