He is a full professor at the DAUIN Department of the Polytechnic of Turin,[1] where he co-founded and co-directs[2] the Nexa Center of Internet and Society.

In the summer of 1999, he is an "adjunct professor" at the School of Engineering and Computer Science at the University of Texas at Dallas, where he teaches a course on speech coding.

[15] Also in 2007, De Martin is appointed by the Rector Francesco Profumo, president of the Library System of the Polytechnic of Turin, a position he kept until the end of 2011.

[16] Since 2008 he participates in the Internet Governance Forum Italia, which he co-organizes as Nexa Center, the 2012 edition which was held in Turin on 19–21 October 2012.

[17] Prof. De Martin has participated in numerous conferences and meetings at national and international level, and regularly writes on the Turin daily "La Stampa"[18] and "Il Sole 24 Ore" (insert "Nòva") as a columnist.