In this paper, we describe how Information and Communication Technologies for Development (ICT4D) projects complemented by the participatory learning process of Service Learning contribute to the sustainable development in developing countries, while exposing our students to real techniques in the practice of engineering. Developing ICT4D projects has several clear advantages, but requires an enormous effort that is only affordable with the help of the University. We will describe the structure available at UPC-Barcelona Tech, which includes the Institute for Sustainability, the Center of Cooperation for Development, the TxT organization and the RIMA-VISCA group. In 15 years, people from the Barcelona School of Informatics have participated in over 50 ICT4D projects in 18 countries. With our initiative, the University can move closer to society, while at the same time society will improve its opinion of the University.