Worked on the kleros/kleros-v2 repository to enhance secure ETH transfer handling within arbitration contracts. Developed the SafeSend library in Solidity, enabling contracts to attempt direct ETH transfers and automatically fall back to WETH when transfers fail, thereby improving reliability in decentralized finance workflows. Integrated this library into both deployment scripts and the core arbitration logic, ensuring consistent and secure asset movement across the system. Focused on smart contract development for Ethereum, the work addressed a critical need for robust value transfer mechanisms in arbitration scenarios. The contribution centered on Solidity and DeFi best practices, emphasizing security and operational resilience.