Santiago Ibañez

Smart Contract Developer & Auditor

Buenos Aires, Argentina

GitHub Twitter / XDiscord: zmettalzMessage on Telegram

🟢Aping In

Smart Contract Developer and Auditor with 3+ years in Solidity and Foundry. Specializes in DeFi protocols and cross-chain infrastructure. Cyfrin SSCD+ certified with deep knowledge across AMMs, stablecoins, lending protocols, account abstraction, RWA, and staking. Active open-source contributor and security researcher on Code4rena and Immunefi.

Work Preferences

Salary

USD 60 – 90

Skills

Invariant Testing10/10

Foundry10/10

Solidity10/10

Uniswap V2/V3/V4 / AMM Design10/10

DeFi Protocol Security9/10

CREATE2 (9/10)Echidna (9/10)Etherscan (9/10)EVM Internals (9/10)Tenderly (8/10)Account Abstraction (ERC-4337) (8/10)Fuzz Testing (8/10)Gas Optimization (8/10)JavaScript / TypeScript (8/10)Medusa (8/10)Proxy Patterns (Upgradeable Contracts) (8/10)Python (8/10)Signature Handling (EIP-712, ERC-1271) (8/10)Stablecoin Mechanics (8/10)JavaScript (7/10)

Work Experience

Smart Contract Developer

Independent

Feb 2022 — Present

Developing smart contracts, DeFi Specialist

Smart Contract Auditor

Independent

Jan 2022 — Present

Compete on Code4rena and Immunefi. Build and maintain open-source audit tooling; publish technical write-ups on DeFi protocol security via GitHub. Selected for the Uniswap Hook Incubator at Atrium Academy building production-grade V4 hooks. Built and shipped Bug Validator — open-source tool that validates audit findings against Code4rena judging criteria. Deployed full 16-contract MakerDAO DAI reimplementation (EDAI/BEI) to Sepolia testnet.

Education

Cyfrin

Certification · Solidity Smart Contract Development (SSCD+)

Self-taught

Solidity, Foundry, and DeFi Protocol Research

Atrium Academy

Program Completion · Uniswap Hook Incubator

2026 – Present