- Upstone Materials (State College, PA)
- Roller Operator - HRI Inc ., - State College, PA 1 Company: HRI Location: State College Country: USA Type of Contract: Seasonal Publication Date: Jul ... 9, 2025 HRI , Inc ., a Colas USA subsidiary, operates...Operate steel-wheeled, rubber-tired, vibrator, segmented or other type of roller to compact earth, subgrade, sub-base and asphalt surfaces.… more