mizilafirox

Solidity Dev / Foundry, Evm, L2s, Crypto

I'm a 29-year-old blockchain enthusiast, deeply immersed in the crypto space since 2017. As a crypto native, I actively use DEXes and lending/borrowing protocols in my daily life, with accounts over 1300 days old.

 I've focused exclusively on Solidity development across EVM-compatible Layer 2s and sidechains, deploying and testing smart contracts with Foundry (But I'm open to work with Hardhat too if necessary). Through my auditing roles at Code4rena (@BRONZEDISC) and Codehawks (tsar), plus private audits, I've uncovered high- and medium-severity vulnerabilities in high-TVL protocols like Ondo Finance and zkSync, earning a bounty for my zkSync contributions. I've spent countless days looking in codebases to fully understand protocols and identify bugs. I'm also advancing in Rust for Solana, where I've found vulnerabilities in programs via competitions, and I'm building my own blockchain in Rust for first-principles understanding.

 Passionate about Chainlink services like RWAs, CCIP, Functions, Data Feeds, and Automation, I'm currently architecting two DeFi protocols. My public GitHub repos showcase my clean, documented code: a REIT investment platform with multiple dividend types and an on-chain game with frontend integration. With a background in ERC standards, gas optimization, and security.

As for the type of work I'm looking for either a building Smart contracts or anything related to EVMs or blockchains and Chainlink, I'm also opened to auditing roles.  I'm getting up to date with Rust and Solana development so I can also contribute with that.


Experience: 4 years

Yearly salary: $100,000

Hourly rate: $0

Nationality: 🇧🇷 Brazil

Residency: 🇧🇷 Brazil


Experience

Smart Contract Auditor
CodeHawks
2023 - 2025
Solidity/Vyper & Rust Solana Smart Contract Auditor.
Smart Contract Auditor
Code4rena
2021 - 2025
Solidity/Vyper Smart Contract Auditor.

Skills

solidity
english
french
portuguese