QuestMark, a division of CentiMark Corporation , is the nation's largest self performing flooring contractor and the leading provider of polished concrete, epoxy, urethane, and exterior coatings for pedestrian and vehicle spaces in the industrial, commercial, and retail markets. The successful candidate for our Epoxy Flooring / Concrete Polishing Crew & Foreman opportunities will demonstrate initiative, be a self-starter with a high level of professional integrity, and have a strong work ethic and competitive drive.