Nicolas is a Security Engineering Lead at Google. His mission is to design, lead and implement security focused software changes on Google G Suite. He has delivered both visible and invisible changes protecting billions of Google users. Some of visible work he delivered to improve Gmail user security include TLS indicator, S/MIME, Confidential Mode and proxy of all images in Gmail. He is actively collaborating with Google Research and is one of the authors of ACM IMC 2015 paper "Neither Snow Nor Rain Nor MITM ... An Empirical Analysis of Email Delivery Security" that received IETF ANRP award in 2016.