Vicente focused on backend development for the storacha/upload-service repository, addressing a bug related to HTTP PUT body size validation. He implemented a strict equality check in JavaScript to ensure that uploaded data matched the exact size constraint, replacing the previous greater-than logic. This adjustment improved data integrity by preventing uploads that did not precisely meet requirements, and he updated error messaging to provide clearer feedback to clients. Vicente’s work resulted in a clean, traceable code change that supports faster reviews and easier auditing. His approach demonstrated attention to correctness and reliability in backend service design and implementation.