Full job description Subsidiary: Simon Simon, the Colas USA subsidiary that operates throughout Colorado, Nebraska, South Dakota, and Wyoming, specializes in aggregates, asphalt, and ready-mix concrete production, asphalt paving, and concrete, bridge, highway, and utility construction. Through strong local ties backed by global resources, we focus on quality and value to deliver the best products and services for our clients. What we do is bigger than construction – it is about connecting commun