Alberto enhanced Solana wallet functionality in the goat-sdk/goat repository by improving the smart wallet example, enforcing mainnet URL usage for Jupiter swaps, and refactoring balance checks for greater reliability. He updated transaction flows to swap USDC for MOTHER and clarified transaction outputs, using Python and SDK development skills to increase security and user transparency. In Crossmint/crossmint-sdk, Alberto resolved a transaction signing issue with Backpack for Solana smart wallets, ensuring smoother wallet interactions. His work included timely patch releases and release management, demonstrating depth in DeFi integrations, cross-repository collaboration, and a focus on maintainable, business-critical wallet infrastructure.