Developed and enhanced Uniswap V4 protocol support across the propeller-heads/tycho-execution and propeller-heads/tycho-simulation repositories, focusing on backend improvements and protocol integration. Implemented executor hook data encoding and swap calculation logic using Rust and Solidity, enabling accurate price and execution fidelity for DeFi workflows. Addressed protocol stability by refining data encoding, correcting error messaging, and resolving CI/CD issues through GitHub Actions and Nextest integration. Enhanced simulation accuracy by integrating hook handlers and decoder support, while streamlining documentation and code structure. This work improved test reliability, deployment safety, and developer experience, supporting faster iteration cycles and robust smart contract development.