New York CNN  —  McDonald’s is seeking to hire up to 375,000 people ahead of the busy summer season, marking its biggest employment initiative in five years. The hiring surge is focused on staffing up its 13,000 US restaurants as the company prepares to open 900 new locations over the next two years. McDonald’s made the announcement Monday at a restaurant in Ohio with Labor Secretary Lori Chavez-DeRemer. McDonald’s ( MCD ) is one of the biggest US employers, with the company estimating that 1