Diana Bacarvalho enhanced Uniswap V4 protocol support across the propeller-heads/tycho-execution and tycho-simulation repositories, focusing on backend development and protocol integration using Rust and Solidity. She implemented executor hook data encoding and improved swap calculation logic, enabling more accurate price and execution fidelity. Diana addressed protocol stability by refining state management and error messaging, and strengthened CI reliability through targeted bug fixes in GitHub Actions workflows. Her work on data encoding and hook handler integration allowed for flexible simulation of Uniswap V4 features, resulting in safer deployments and faster iteration cycles. The engineering demonstrated depth in DeFi protocol development.