Sébastien has an academic background in natural language processing research. After a few years working as a teacher, he joined Google Search Quality team in 2007 . There, he investigated all the SEO techniques on the French market, he also worked a technical support for Google Anaytics. In mid 2009, he left to join 1ere Position, a leading webmarketing agency in France. He quited in late 2010 to start his own company Woptimo : an agency specialized in SEO, Web Analytics and web usability.