Sergio Lewis is the Emmersion assessment team lead at Rosetta Stone. With a background in linguistics, geography, and global business administration, he’s an expert in automated language assessments used to empower global workforces.

Emmersion, a Rosetta Stone product, is a cutting-edge language assessment platform that quickly and accurately evaluates speaking, grammar, and writing skills in multiple languages. It’s transforming global workplace practices by helping organizations build successful, multilingual teams.

Rosetta Stone, a division of IXL Learning, is dedicated to changing people's lives through the power of language education. Founded in 1992, Rosetta Stone uses cloud-based technology to help learners read, write, and speak over 25 languages. Today, Rosetta Stone is one of the most recognized language-learning companies in the world.