Mirella Alves focused on onboarding process cleanup within the IT-Academy-BCN/ita-profiles repository, targeting test maintainability and reliability. She removed a commented-out line from SendMessageTest.php, a change that did not alter application behavior but reduced test noise and improved code clarity. Her approach emphasized careful validation to ensure onboarding-related tests remained stable after the update. Working primarily with PHP and leveraging unit testing skills, Mirella contributed to a cleaner codebase that supports more reliable continuous integration. The scope of work was narrow, addressing a specific aspect of test maintenance, and demonstrated attention to detail in maintaining code quality and traceability.