His research focuses on mobile accessibility, text-entry, and on accessible and usable privacy. He has focused most of his efforts on improving the quality of life of blind and visually impaired people, people with motor impairments, and people with dementia. He was a local chair for ASSETS 2015 and has collaborated in several other editions, as an organizer, committee member, and author. Tiago holds MSc (2008) and PhD (2012) degrees from Técnico, University of Lisbon, both in Information Systems and Computer Engineering.