Wylliams Santos is currently an adjunct professor at the University of Pernambuco (UPE), Recife, Brazil. He leads the REACT Research Labs. Ph.D. in Computer Science (2018), Informatics Center (CIn) at Federal University of Pernambuco (UFPE), Recife, Brazil. MSc in Computer Science (2011), Informatics Center at Federal University of Pernambuco, Recife, Brazil. He undertook his sandwich Ph.D. (2015-2016) research at the Department of Computer Science and Information Systems (CSIS) of the University of Limerick, Ireland, and in collaboration with Lero - the Irish Software Research Centre. His research interest is software quality, software project management, agile software development, and empirical software engineering.