Matheus Paixao is currently a Research Assistant in the Computer Science Department at the State University of Ceara. He recently received the PhD degree in Computer Science at University College London, where he was part of the Centre for Research on Evolution, Search, and Testing (CREST) and Software Systems Engineering (SSE) Group. He was supervised by Prof. Mark Harman and Dr. Jens Krinke. His research interests include software architecture, search-based software engineering, mining software repositories, modern code review and empirical software engineering.