Aug 23, 2023
About me
Get to know Solthodox, a 24 y/o Solidity / EVM engineer from Spain.

Solidity / EVM engineer focused on designing, building, and securing DeFi protocols and on-chain financial infrastructure.
My experience spans DEX infrastructure, yield vaults, stablecoin systems, liquidity protocols, and smart contract security research. I have worked on production DeFi systems handling millions in TVL across teams including Keyrock, Mangrove DEX, Veris Labs, and Thesis Defense.
Focus
- Solidity & EVM architecture: Designing production smart contract systems with strong attention to protocol invariants, gas efficiency, and long-term maintainability.
- DeFi protocol engineering: Building AMMs, vaults, staking systems, liquidity infrastructure, and on-chain financial mechanisms.
- Smart contract security: Reviewing Solidity systems through manual analysis, fuzzing, invariant testing, static analysis, and adversarial protocol reasoning.
- On-chain finance: Applying market structure, risk management, and financial mechanism design to secure, capital-efficient DeFi systems.
Stack
- Solidity, EVM, Ethereum
- Rust, TypeScript, Node.js
- Foundry, Hardhat, Slither
- ERC-20, ERC-4626, upgradeable contracts
- AMMs, DEXs, vaults, staking, yield strategies, liquidity protocols
Alongside engineering, I actively research Ethereum security, protocol mechanisms, and DeFi market structure, with strong interest in building secure, capital-efficient, and scalable on-chain systems.