Valentin works for Excellium Services for five years now. For four years he was half working for the Pentest team and half for the CSIRT team. That vision of the offensive and defensive side allows Valentin to get more skills about the attacks and the real life of security incident response. Now, since more than one year , Valentin is dedicated to the Application Security teams and he is focused on Web, Mobile, Desktop application and code review. He also supports clients for Application Security awareness in order to help them with improving their development by adding the security basics on it.