Hello!
I'm Claudia, a Blockchain Developer &
Security Researcher focused on building secure, efficient blockchain solutions. With security as my top priority, I’ve audited and delivered Proof of Concept and audit reports for several smart contracts.
With expertise in Solidity, JavaScript, Hardhat, Foundry, React, Ethers.js, Web3.js, and more, I create full-stack decentralized applications DApps from scratch, ensuring security and scalability at every stage.
Let's connect and explore possibilities together!
My Full-Stack Projects!
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ERC20 Tokens
Full-stack project I initiated from scratch, aimed at enabling secure transfer and swapping of ERC20
tokens on the Ethereum blockchain. The project has been completed
with both backend and frontend development.
Chainlink Price Alert DApp
The PriceAlert DApp is a decentralized application built on the Ethereum blockchain, allowing users to set price limits for assets and monitor real-time price changes. It leverages Chainlink's Price Feed for obtaining accurate and up-to-date price data.
MultiSigWallet Dapp
Developed a multi-signature wallet smart contract on the Ethereum blockchain. Features include checking signatory addresses, create and executing transactions, with a minimum of two approvals required from three signatories.
Backend-Focused Projects!
Flipping Card Game VRF
This decentralized game leverages Chainlink VRF to ensure fair and unpredictable outcomes in a two-player card flipping competition. Players enter by paying an entry fee, and random numbers determine the winner, guaranteeing transparency and security for prize distribution.
Staking
The Staking smart contract allows users to stake and unstake ETH with a minimum staking period and a penalty for early withdrawal. Users who complete the minimum staking period are rewarded with ERC20 NFTs in addition to their staked ETH. The contract enforces staking rules and rewards responsibly.
CodeHawksNFT
Is a decentralized platform rewarding auditors with ERC721 NFTs for validated vulnerabilities. Users submit PoCs with severity levels, and rewards are issued: 1 NFT for low, 2 for medium, and 3 for high severity. NFTs are minted and transferred to users as recognition for their contributions.
Security PoCs & Audits!
Check Out My Audit Collection!
Explore My AuditsContract Audit Flipping Card Game
The DistributePrize function lacked proper reward checks, creating a risk of reward theft from the intended winner.
Contract Audit Millow
The Cancel Sale function lacked a verification check for the buyer's deposit, potentially leading to fund theft.
First-Flight #25-Mystery-Box
The transferReward and claimSingleReward functions incorrectly handle array removal. claimSingleReward incorrect Index validation.
First-Flight #28-GivingThanks
The updateRegistry function lacks access control, enabling unauthorized registry changes and potential ETH donation redirection.