Complex sentence: Allard moved from his hometown of Utica, New York to New York City to work for McKinsey & Company, but left to become a video game designer at Ubisoft Entertainment, where he worked on Batman Vengeance, Tarzan and a number of other titles.
Split into simpler sentences: Allard moved from his hometown of Utica, New York to New York City to work for McKinsey & Company, but left to become a video game designer. Allard joined Ubisoft Entertainment as a video game designer, where he worked on Batman Vengeance, Tarzan and a number of other titles.