Materials Science Engineer (Extrusion) Architectural Products Group Brooksville, Florida, United States | Bulls Gap, Tennessee, United States | Dover, Delaware, United States | Philadelphia, Pennsylvania, United States | Salisbury, North Carolina, United States Job ID: 521656 Oldcastle, a CRH company, is reinventing what's possible in building solutions. We are the leading provider of innovative outdoor living products and utility infrastructure solutions for the water, energy, and communicatio